RECON: TNO occultation with 99CQ133

Event between 99CQ133 and star UC4-538-050770 with event index number of 329595

Geocentric closest approach at 2020/01/16 08:12:18 UTC

J2000 position of star is 10:08:01.4 +17:25:56
Equinox of date position of star is 10:09:04.8 +17:20:13
Stellar brightness R=16.2, use SENSEUP=128
Star is 42 degrees from the moon. Moon is 64% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 42.5 AU from the Sun and 41.7 AU from the Earth.
The TNO is moving 21.3 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 328 seconds.
The 1-sigma cross-track error in the shadow position is 4753 km.
The sky-plane scale is 30217.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=238.8 km assuming a 5% albedo -- 11.2 sec chord
Diameter=97.5 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CLASSICAL

Star training set for 99CQ133, (2020/01/16 08:12UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:26.2 +11:52:07  1.3  5.47  40
30Eta Leo      10:08:25.4 +16:39:51  3.5  0.69  42
PPM 127112     10:07:46.4 +17:47:48  8.2  0.56  42
PPM 127136     10:09:20.3 +17:15:34  9.8  0.09  42
99CQ133        10:09:07.0 +17:20:01 16.2        42
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.7 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=1.0 and success probability=9.4%

Site Site mid-time
(UT) Sun alt
(deg) Sky Moon Star alt
(deg) Star az
(deg) Target Observing Time
(UT) X-track
(km)

Kelowna 08:15:09 -61.1 Dark Up 48.4 129.7 Up 08:00:09 - 08:30:09 -1498

Summerland 08:15:10 -61.4 Dark Up 48.5 129.1 Up 08:00:10 - 08:30:10 -1533

Penticton 08:15:09 -61.4 Dark Up 48.6 129.1 Up 08:00:09 - 08:30:09 -1538

Okanagan Falls 08:15:09 -61.6 Dark Up 48.7 128.9 Up 08:00:09 - 08:30:09 -1557

Oliver 08:15:10 -61.8 Dark Up 48.8 128.8 Up 08:00:10 - 08:30:10 -1574

Anarchist Mountain Observatory 08:15:09 -62.0 Dark Up 49.0 128.9 Up 08:00:09 - 08:30:09 -1588

Oroville 08:15:10 -62.0 Dark Up 49.0 128.8 Up 08:00:10 - 08:30:10 -1596

Tonasket 08:15:09 -62.3 Dark Up 49.2 128.5 Up 08:00:09 - 08:30:09 -1620

Okanogan 08:15:10 -62.6 Dark Up 49.3 128.1 Up 08:00:10 - 08:30:10 -1657

Brewster 08:15:11 -62.9 Dark Up 49.4 127.6 Up 08:00:11 - 08:30:11 -1688

Manson/Chelan 08:15:11 -63.1 Dark Up 49.3 126.9 Up 08:00:11 - 08:30:11 -1716

Entiat 08:15:11 -63.3 Dark Up 49.4 126.6 Up 08:00:11 - 08:30:11 -1740

Wenatchee 08:15:11 -63.6 Dark Up 49.5 126.3 Up 08:00:11 - 08:30:11 -1768

Ellensburg 08:15:12 -64.0 Dark Up 49.6 125.6 Up 08:00:12 - 08:30:12 -1814

Yakima 08:15:12 -64.4 Dark Up 49.8 125.2 Up 08:00:12 - 08:30:12 -1856

Pasco 08:15:08 -64.7 Dark Up 50.8 126.6 Up 08:00:08 - 08:30:08 -1865

Toppenish/White Swan 08:15:12 -64.6 Dark Up 50.1 125.2 Up 08:00:12 - 08:30:12 -1876

PNWRO 08:15:08 -64.9 Dark Up 51.1 126.7 Up 08:00:08 - 08:30:08 -1886

George/Umatilla 08:15:09 -65.0 Dark Up 50.9 126.0 Up 08:00:09 - 08:30:09 -1903

Goldendale 08:15:13 -65.2 Dark Up 50.1 124.2 Up 08:00:13 - 08:30:13 -1941

The Dalles 08:15:14 -65.4 Dark Up 50.0 123.5 Up 08:00:14 - 08:30:14 -1970

Maupin 08:15:14 -65.8 Dark Up 50.3 123.2 Up 08:00:14 - 08:30:14 -2012

Madras/Culver 08:15:14 -66.4 Dark Up 50.6 122.6 Up 08:00:14 - 08:30:14 -2070

Redmond 08:15:14 -66.7 Dark Up 50.8 122.2 Up 08:00:14 - 08:30:14 -2108

Sisters 08:15:15 -66.7 Dark Up 50.5 121.7 Up 08:00:15 - 08:30:15 -2113

Bend 08:15:14 -67.0 Dark Up 50.8 121.8 Up 08:00:14 - 08:30:14 -2133

Niwot 08:14:19 -66.5 Dark Up 62.3 139.7 Up 07:59:19 - 08:29:19 -2151

Oregon Observatory 08:15:14 -67.1 Dark Up 50.8 121.5 Up 08:00:14 - 08:30:14 -2154

SwRI 08:14:18 -66.6 Dark Up 62.4 139.4 Up 07:59:18 - 08:29:18 -2164

La Pine/Gilchrist 08:15:14 -67.3 Dark Up 50.9 121.2 Up 08:00:14 - 08:30:14 -2176

North Lake 08:15:12 -67.8 Dark Up 51.5 121.4 Up 08:00:12 - 08:30:12 -2211

Paisley 08:15:11 -68.3 Dark Up 52.0 121.2 Up 08:00:11 - 08:30:11 -2262

Chiloquin 08:15:16 -68.4 Dark Up 51.2 119.6 Up 08:00:16 - 08:30:16 -2300

Lakeview 08:15:10 -68.8 Dark Up 52.4 120.9 Up 08:00:10 - 08:30:10 -2311

Klamath Falls 08:15:15 -68.8 Dark Up 51.4 119.3 Up 08:00:15 - 08:30:15 -2334

Tulelake 08:15:14 -69.1 Dark Up 51.8 119.3 Up 08:00:14 - 08:30:14 -2357

Cedarville 08:15:10 -69.5 Dark Up 52.8 120.3 Up 08:00:10 - 08:30:10 -2377

Fall River/Burney 08:15:14 -70.0 Dark Up 52.3 118.4 Up 08:00:14 - 08:30:14 -2452

Susanville 08:15:12 -70.6 Dark Up 53.0 118.5 Up 08:00:12 - 08:30:12 -2504

Gimple 08:15:12 -70.9 Dark Up 53.0 118.0 Up 08:00:12 - 08:30:12 -2538

Greenville 08:15:11 -70.9 Dark Up 53.0 117.9 Up 08:00:11 - 08:30:11 -2539

Quincy 08:15:12 -71.1 Dark Up 53.1 117.6 Up 08:00:12 - 08:30:12 -2561

Portola 08:15:10 -71.2 Dark Up 53.5 118.0 Up 08:00:10 - 08:30:10 -2565

Reno 08:15:08 -71.4 Dark Up 54.0 118.4 Up 08:00:08 - 08:30:08 -2580

Carson City 08:15:08 -71.8 Dark Up 54.2 118.0 Up 08:00:08 - 08:30:08 -2617

Yerington 08:15:05 -71.9 Dark Up 54.7 118.5 Up 08:00:05 - 08:30:05 -2625

Gardnerville 08:15:08 -72.0 Dark Up 54.3 117.8 Up 08:00:08 - 08:30:08 -2642

Hawthorne 08:15:03 -72.3 Dark Up 55.3 118.5 Up 08:00:03 - 08:30:03 -2662

Tonopah 08:14:59 -72.6 Dark Up 56.5 119.5 Up 07:59:59 - 08:29:59 -2681

Lee Vining 08:15:05 -72.9 Dark Up 55.2 117.2 Up 08:00:05 - 08:30:05 -2733

Bishop 08:15:01 -73.4 Dark Up 56.0 117.3 Up 08:00:01 - 08:30:01 -2781

Beatty 08:14:56 -73.6 Dark Up 57.4 118.5 Up 07:59:56 - 08:29:56 -2792

Indian Springs 08:14:52 -73.7 Dark Up 58.3 119.4 Up 07:59:52 - 08:29:52 -2801

Henderson 08:14:49 -74.0 Dark Up 59.0 119.4 Up 07:59:49 - 08:29:49 -2840

Lone Pine 08:15:01 -74.1 Dark Up 56.6 116.6 Up 08:00:01 - 08:30:01 -2854

Patrick 08:14:45 -74.2 Dark Up 60.1 119.9 Up 07:59:45 - 08:29:45 -2878

DCO 08:14:42 -74.2 Dark Up 60.7 120.4 Up 07:59:42 - 08:29:42 -2892

Searchlight/Boulder City 08:14:47 -74.5 Dark Up 59.3 118.7 Up 07:59:47 - 08:29:47 -2899

Kingman/Dolan Springs 08:14:45 -74.5 Dark Up 60.1 119.3 Up 07:59:45 - 08:29:45 -2906

Laughlin/Bullhead City 08:14:46 -74.7 Dark Up 59.7 118.7 Up 07:59:46 - 08:29:46 -2922

Mohave Valley 08:14:47 -74.9 Dark Up 59.8 118.3 Up 07:59:47 - 08:29:47 -2951

Lake Havasu City 08:14:45 -75.2 Dark Up 60.2 117.9 Up 07:59:45 - 08:29:45 -2987

Parker 08:14:45 -75.5 Dark Up 60.4 117.4 Up 07:59:45 - 08:29:45 -3023

CPSLO 08:15:08 -75.7 Dark Up 55.2 112.1 Up 08:00:08 - 08:30:08 -3050

Blythe 08:14:44 -76.1 Dark Up 60.4 116.2 Up 07:59:44 - 08:29:44 -3086

Idyllwild 08:14:53 -76.6 Dark Up 58.8 114.0 Up 07:59:53 - 08:29:53 -3128

Wildwood 08:15:00 -76.7 Dark Up 57.2 112.5 Up 08:00:00 - 08:30:00 -3134

Calipatria 08:14:48 -76.8 Dark Up 59.9 114.4 Up 07:59:48 - 08:29:48 -3163

Yuma 08:14:44 -76.9 Dark Up 60.8 114.7 Up 07:59:44 - 08:29:44 -3186

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 99CQ133, (2020/01/16 08:12UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  5.47  40
30Eta Leo      10:07:19.9 +16:45:46  3.5  0.69  42
PPM 127112     10:06:40.7 +17:53:42  8.2  0.56  42
PPM 127136     10:08:14.8 +17:21:30  9.8  0.09  42
99CQ133        10:08:01.4 +17:25:56 16.2        42
Positions are for J2000

Event circumstances last updated at 2019/05/21 23:27:26 UT

Marc W. Buie, Southwest Research Institute

RECON

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	08:15:09	-61.1	Dark	Up	48.4	129.7	Up	08:00:09 - 08:30:09	-1498
Summerland	08:15:10	-61.4	Dark	Up	48.5	129.1	Up	08:00:10 - 08:30:10	-1533
Penticton	08:15:09	-61.4	Dark	Up	48.6	129.1	Up	08:00:09 - 08:30:09	-1538
Okanagan Falls	08:15:09	-61.6	Dark	Up	48.7	128.9	Up	08:00:09 - 08:30:09	-1557
Oliver	08:15:10	-61.8	Dark	Up	48.8	128.8	Up	08:00:10 - 08:30:10	-1574
Anarchist Mountain Observatory	08:15:09	-62.0	Dark	Up	49.0	128.9	Up	08:00:09 - 08:30:09	-1588
Oroville	08:15:10	-62.0	Dark	Up	49.0	128.8	Up	08:00:10 - 08:30:10	-1596
Tonasket	08:15:09	-62.3	Dark	Up	49.2	128.5	Up	08:00:09 - 08:30:09	-1620
Okanogan	08:15:10	-62.6	Dark	Up	49.3	128.1	Up	08:00:10 - 08:30:10	-1657
Brewster	08:15:11	-62.9	Dark	Up	49.4	127.6	Up	08:00:11 - 08:30:11	-1688
Manson/Chelan	08:15:11	-63.1	Dark	Up	49.3	126.9	Up	08:00:11 - 08:30:11	-1716
Entiat	08:15:11	-63.3	Dark	Up	49.4	126.6	Up	08:00:11 - 08:30:11	-1740
Wenatchee	08:15:11	-63.6	Dark	Up	49.5	126.3	Up	08:00:11 - 08:30:11	-1768
Ellensburg	08:15:12	-64.0	Dark	Up	49.6	125.6	Up	08:00:12 - 08:30:12	-1814
Yakima	08:15:12	-64.4	Dark	Up	49.8	125.2	Up	08:00:12 - 08:30:12	-1856
Pasco	08:15:08	-64.7	Dark	Up	50.8	126.6	Up	08:00:08 - 08:30:08	-1865
Toppenish/White Swan	08:15:12	-64.6	Dark	Up	50.1	125.2	Up	08:00:12 - 08:30:12	-1876
PNWRO	08:15:08	-64.9	Dark	Up	51.1	126.7	Up	08:00:08 - 08:30:08	-1886
George/Umatilla	08:15:09	-65.0	Dark	Up	50.9	126.0	Up	08:00:09 - 08:30:09	-1903
Goldendale	08:15:13	-65.2	Dark	Up	50.1	124.2	Up	08:00:13 - 08:30:13	-1941
The Dalles	08:15:14	-65.4	Dark	Up	50.0	123.5	Up	08:00:14 - 08:30:14	-1970
Maupin	08:15:14	-65.8	Dark	Up	50.3	123.2	Up	08:00:14 - 08:30:14	-2012
Madras/Culver	08:15:14	-66.4	Dark	Up	50.6	122.6	Up	08:00:14 - 08:30:14	-2070
Redmond	08:15:14	-66.7	Dark	Up	50.8	122.2	Up	08:00:14 - 08:30:14	-2108
Sisters	08:15:15	-66.7	Dark	Up	50.5	121.7	Up	08:00:15 - 08:30:15	-2113
Bend	08:15:14	-67.0	Dark	Up	50.8	121.8	Up	08:00:14 - 08:30:14	-2133
Niwot	08:14:19	-66.5	Dark	Up	62.3	139.7	Up	07:59:19 - 08:29:19	-2151
Oregon Observatory	08:15:14	-67.1	Dark	Up	50.8	121.5	Up	08:00:14 - 08:30:14	-2154
SwRI	08:14:18	-66.6	Dark	Up	62.4	139.4	Up	07:59:18 - 08:29:18	-2164
La Pine/Gilchrist	08:15:14	-67.3	Dark	Up	50.9	121.2	Up	08:00:14 - 08:30:14	-2176
North Lake	08:15:12	-67.8	Dark	Up	51.5	121.4	Up	08:00:12 - 08:30:12	-2211
Paisley	08:15:11	-68.3	Dark	Up	52.0	121.2	Up	08:00:11 - 08:30:11	-2262
Chiloquin	08:15:16	-68.4	Dark	Up	51.2	119.6	Up	08:00:16 - 08:30:16	-2300
Lakeview	08:15:10	-68.8	Dark	Up	52.4	120.9	Up	08:00:10 - 08:30:10	-2311
Klamath Falls	08:15:15	-68.8	Dark	Up	51.4	119.3	Up	08:00:15 - 08:30:15	-2334
Tulelake	08:15:14	-69.1	Dark	Up	51.8	119.3	Up	08:00:14 - 08:30:14	-2357
Cedarville	08:15:10	-69.5	Dark	Up	52.8	120.3	Up	08:00:10 - 08:30:10	-2377
Fall River/Burney	08:15:14	-70.0	Dark	Up	52.3	118.4	Up	08:00:14 - 08:30:14	-2452
Susanville	08:15:12	-70.6	Dark	Up	53.0	118.5	Up	08:00:12 - 08:30:12	-2504
Gimple	08:15:12	-70.9	Dark	Up	53.0	118.0	Up	08:00:12 - 08:30:12	-2538
Greenville	08:15:11	-70.9	Dark	Up	53.0	117.9	Up	08:00:11 - 08:30:11	-2539
Quincy	08:15:12	-71.1	Dark	Up	53.1	117.6	Up	08:00:12 - 08:30:12	-2561
Portola	08:15:10	-71.2	Dark	Up	53.5	118.0	Up	08:00:10 - 08:30:10	-2565
Reno	08:15:08	-71.4	Dark	Up	54.0	118.4	Up	08:00:08 - 08:30:08	-2580
Carson City	08:15:08	-71.8	Dark	Up	54.2	118.0	Up	08:00:08 - 08:30:08	-2617
Yerington	08:15:05	-71.9	Dark	Up	54.7	118.5	Up	08:00:05 - 08:30:05	-2625
Gardnerville	08:15:08	-72.0	Dark	Up	54.3	117.8	Up	08:00:08 - 08:30:08	-2642
Hawthorne	08:15:03	-72.3	Dark	Up	55.3	118.5	Up	08:00:03 - 08:30:03	-2662
Tonopah	08:14:59	-72.6	Dark	Up	56.5	119.5	Up	07:59:59 - 08:29:59	-2681
Lee Vining	08:15:05	-72.9	Dark	Up	55.2	117.2	Up	08:00:05 - 08:30:05	-2733
Bishop	08:15:01	-73.4	Dark	Up	56.0	117.3	Up	08:00:01 - 08:30:01	-2781
Beatty	08:14:56	-73.6	Dark	Up	57.4	118.5	Up	07:59:56 - 08:29:56	-2792
Indian Springs	08:14:52	-73.7	Dark	Up	58.3	119.4	Up	07:59:52 - 08:29:52	-2801
Henderson	08:14:49	-74.0	Dark	Up	59.0	119.4	Up	07:59:49 - 08:29:49	-2840
Lone Pine	08:15:01	-74.1	Dark	Up	56.6	116.6	Up	08:00:01 - 08:30:01	-2854
Patrick	08:14:45	-74.2	Dark	Up	60.1	119.9	Up	07:59:45 - 08:29:45	-2878
DCO	08:14:42	-74.2	Dark	Up	60.7	120.4	Up	07:59:42 - 08:29:42	-2892
Searchlight/Boulder City	08:14:47	-74.5	Dark	Up	59.3	118.7	Up	07:59:47 - 08:29:47	-2899
Kingman/Dolan Springs	08:14:45	-74.5	Dark	Up	60.1	119.3	Up	07:59:45 - 08:29:45	-2906
Laughlin/Bullhead City	08:14:46	-74.7	Dark	Up	59.7	118.7	Up	07:59:46 - 08:29:46	-2922
Mohave Valley	08:14:47	-74.9	Dark	Up	59.8	118.3	Up	07:59:47 - 08:29:47	-2951
Lake Havasu City	08:14:45	-75.2	Dark	Up	60.2	117.9	Up	07:59:45 - 08:29:45	-2987
Parker	08:14:45	-75.5	Dark	Up	60.4	117.4	Up	07:59:45 - 08:29:45	-3023
CPSLO	08:15:08	-75.7	Dark	Up	55.2	112.1	Up	08:00:08 - 08:30:08	-3050
Blythe	08:14:44	-76.1	Dark	Up	60.4	116.2	Up	07:59:44 - 08:29:44	-3086
Idyllwild	08:14:53	-76.6	Dark	Up	58.8	114.0	Up	07:59:53 - 08:29:53	-3128
Wildwood	08:15:00	-76.7	Dark	Up	57.2	112.5	Up	08:00:00 - 08:30:00	-3134
Calipatria	08:14:48	-76.8	Dark	Up	59.9	114.4	Up	07:59:48 - 08:29:48	-3163
Yuma	08:14:44	-76.9	Dark	Up	60.8	114.7	Up	07:59:44 - 08:29:44	-3186