RECON: TNO occultation with 14YY49

Event between 14YY49 and star UC4-457-032047 with event index number of 321876

Geocentric closest approach at 2020/02/10 06:03:52 UTC

J2000 position of star is 07:16:39.0 +01:20:50
Equinox of date position of star is 07:17:39.4 +01:18:41
Stellar brightness R=16.5, use SENSEUP=128
Star is 49 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 19.6 AU from the Sun and 18.8 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 62 seconds.
The 1-sigma cross-track error in the shadow position is 779 km.
The sky-plane scale is 13599.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2020/02/10 06:04UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:02.0 -16:44:41 -1.5 19.67  63
Alhena         06:38:52.4 +16:22:50  1.9 17.85  56
PPM 152385     07:20:25.4 +02:42:08  5.9  1.55  48
PPM 152289     07:17:39.1 +01:50:28  7.6  0.53  49
PPM 152273     07:17:11.1 +01:24:00  9.1  0.16  50
PPM 152302     07:17:55.8 +01:26:01 10.8  0.14  49
14YY49         07:17:41.5 +01:18:36 16.5        49
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 5.0 sigma about the mid-time.
The median site spacing is 12.3 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:05:20 -46.3 Dark Up 41.4 183.4 Up 05:59:39 - 06:11:01 7818
Summerland 06:05:20 -46.4 Dark Up 41.7 183.1 Up 05:59:39 - 06:11:01 7790
Penticton 06:05:20 -46.5 Dark Up 41.8 183.2 Up 05:59:39 - 06:11:01 7789
Okanagan Falls 06:05:19 -46.6 Dark Up 42.0 183.2 Up 05:59:38 - 06:11:00 7776
Oliver 06:05:19 -46.7 Dark Up 42.1 183.2 Up 05:59:38 - 06:11:00 7766
Anarchist Mountain Observatory 06:05:19 -46.9 Dark Up 42.3 183.5 Up 05:59:38 - 06:11:00 7760
Oroville 06:05:19 -46.9 Dark Up 42.4 183.4 Up 05:59:38 - 06:11:00 7753
Tonasket 06:05:18 -47.1 Dark Up 42.6 183.4 Up 05:59:37 - 06:10:59 7738
Okanogan 06:05:18 -47.2 Dark Up 42.9 183.2 Up 05:59:37 - 06:10:59 7710
Brewster 06:05:19 -47.3 Dark Up 43.2 183.0 Up 05:59:38 - 06:11:00 7686
Manson/Chelan 06:05:18 -47.2 Dark Up 43.4 182.5 Up 05:59:37 - 06:10:59 7660
Entiat 06:05:18 -47.3 Dark Up 43.7 182.4 Up 05:59:37 - 06:10:59 7643
Wenatchee 06:05:19 -47.5 Dark Up 43.9 182.3 Up 05:59:38 - 06:11:00 7622
Niwot 06:04:10 -60.1 Dark Up 48.4 205.4 Up 05:58:29 - 06:09:51 7615
SwRI 06:04:11 -60.1 Dark Up 48.6 205.3 Up 05:58:30 - 06:09:52 7604
Ellensburg 06:05:19 -47.6 Dark Up 44.3 182.0 Up 05:59:38 - 06:11:00 7586
Pasco 06:05:13 -48.8 Dark Up 45.0 184.0 Up 05:59:32 - 06:10:54 7579
PNWRO 06:05:11 -49.1 Dark Up 45.3 184.3 Up 05:59:30 - 06:10:52 7569
Yakima 06:05:19 -47.8 Dark Up 44.7 182.0 Up 05:59:38 - 06:11:00 7557
George/Umatilla 06:05:12 -48.9 Dark Up 45.4 183.7 Up 05:59:31 - 06:10:53 7549
Toppenish/White Swan 06:05:16 -48.1 Dark Up 45.0 182.2 Up 05:59:35 - 06:10:57 7547
Goldendale 06:05:18 -48.2 Dark Up 45.5 181.6 Up 05:59:37 - 06:10:59 7494
The Dalles 06:05:18 -48.1 Dark Up 45.7 181.1 Up 05:59:37 - 06:10:59 7466
Maupin 06:05:17 -48.4 Dark Up 46.2 181.3 Up 05:59:36 - 06:10:58 7439
Madras/Culver 06:05:17 -48.7 Dark Up 46.7 181.2 Up 05:59:36 - 06:10:58 7398
Redmond 06:05:17 -48.9 Dark Up 47.1 181.1 Up 05:59:36 - 06:10:58 7370
Sisters 06:05:17 -48.7 Dark Up 47.0 180.6 Up 05:59:36 - 06:10:58 7359
Bend 06:05:16 -48.9 Dark Up 47.3 180.9 Up 05:59:35 - 06:10:57 7350
Oregon Observatory 06:05:18 -49.0 Dark Up 47.5 180.8 Up 05:59:37 - 06:10:59 7332
La Pine/Gilchrist 06:05:17 -49.1 Dark Up 47.7 180.7 Up 05:59:36 - 06:10:58 7315
North Lake 06:05:14 -49.7 Dark Up 48.1 181.6 Up 05:59:33 - 06:10:55 7303
Paisley 06:05:12 -50.2 Dark Up 48.6 182.1 Up 05:59:31 - 06:10:53 7274
Lakeview 06:05:11 -50.6 Dark Up 49.1 182.4 Up 05:59:30 - 06:10:52 7242
Chiloquin 06:05:16 -49.5 Dark Up 48.8 180.1 Up 05:59:35 - 06:10:57 7219
Cedarville 06:05:08 -51.1 Dark Up 49.8 182.7 Up 05:59:27 - 06:10:49 7198
Klamath Falls 06:05:15 -49.7 Dark Up 49.1 180.3 Up 05:59:34 - 06:10:56 7196
Tulelake 06:05:15 -50.0 Dark Up 49.4 180.7 Up 05:59:34 - 06:10:56 7186
Fall River/Burney 06:05:12 -50.6 Dark Up 50.3 180.8 Up 05:59:31 - 06:10:53 7118
Susanville 06:05:07 -51.4 Dark Up 50.9 182.0 Up 05:59:26 - 06:10:48 7095
Gimple 06:05:09 -51.4 Dark Up 51.2 181.7 Up 05:59:28 - 06:10:50 7066
Greenville 06:05:08 -51.3 Dark Up 51.2 181.5 Up 05:59:27 - 06:10:49 7063
Reno 06:05:03 -52.4 Dark Up 51.8 183.4 Up 05:59:22 - 06:10:44 7057
Portola 06:05:06 -51.8 Dark Up 51.5 182.3 Up 05:59:25 - 06:10:47 7055
Quincy 06:05:08 -51.4 Dark Up 51.4 181.6 Up 05:59:27 - 06:10:49 7048
Yerington 06:04:59 -53.1 Dark Up 52.3 184.4 Up 05:59:18 - 06:10:40 7037
Tonopah 06:04:51 -54.8 Dark Up 53.0 187.7 Up 05:59:10 - 06:10:32 7034
Carson City 06:05:03 -52.6 Dark Up 52.1 183.4 Up 05:59:22 - 06:10:44 7029
Hawthorne 06:04:56 -53.7 Dark Up 52.7 185.3 Up 05:59:15 - 06:10:37 7019
Gardnerville 06:05:01 -52.7 Dark Up 52.4 183.5 Up 05:59:20 - 06:10:42 7012
Indian Springs 06:04:40 -56.7 Dark Up 54.3 190.5 Up 05:58:59 - 06:10:21 6973
Beatty 06:04:45 -55.8 Dark Up 54.1 188.7 Up 05:59:04 - 06:10:26 6959
Lee Vining 06:04:57 -53.7 Dark Up 53.3 184.6 Up 05:59:16 - 06:10:38 6957
Henderson 06:04:36 -57.4 Dark Up 54.7 191.8 Up 05:58:55 - 06:10:17 6956
DCO 06:04:27 -59.1 Dark Up 55.3 195.2 Up 05:58:46 - 06:10:08 6950
Patrick 06:04:31 -58.5 Dark Up 55.2 193.9 Up 05:58:50 - 06:10:12 6947
Bishop 06:04:53 -54.4 Dark Up 53.8 185.9 Up 05:59:12 - 06:10:34 6935
Kingman/Dolan Springs 06:04:31 -58.5 Dark Up 55.4 193.7 Up 05:58:50 - 06:10:12 6922
Searchlight/Boulder City 06:04:36 -57.8 Dark Up 55.3 192.1 Up 05:58:55 - 06:10:17 6912
Laughlin/Bullhead City 06:04:33 -58.2 Dark Up 55.5 192.8 Up 05:58:52 - 06:10:14 6901
Lone Pine 06:04:50 -55.1 Dark Up 54.6 186.5 Up 05:59:09 - 06:10:31 6886
Mohave Valley 06:04:33 -58.3 Dark Up 55.8 192.9 Up 05:58:52 - 06:10:14 6879
Lake Havasu City 06:04:31 -58.7 Dark Up 56.1 193.4 Up 05:58:50 - 06:10:12 6856
Parker 06:04:31 -58.9 Dark Up 56.5 193.6 Up 05:58:50 - 06:10:12 6829
Blythe 06:04:30 -59.0 Dark Up 57.0 193.3 Up 05:58:49 - 06:10:11 6774
Idyllwild 06:04:39 -57.4 Dark Up 57.3 189.4 Up 05:58:58 - 06:10:20 6702
Calipatria 06:04:32 -58.6 Dark Up 57.7 191.7 Up 05:58:51 - 06:10:13 6697
Yuma 06:04:28 -59.4 Dark Up 57.9 193.5 Up 05:58:47 - 06:10:09 6696
CPSLO 06:04:58 -53.9 Dark Up 56.0 182.2 Up 05:59:17 - 06:10:39 6683
Wildwood 06:04:47 -55.9 Dark Up 57.1 186.0 Up 05:59:06 - 06:10:28 6660

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 14YY49, (2020/02/10 06:04UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.1 -16:43:21 -1.5 19.67  63
Alhena         06:37:42.8 +16:23:57  1.9 17.85  56
PPM 152385     07:19:22.4 +02:44:26  5.9  1.55  48
PPM 152289     07:16:36.5 +01:52:41  7.6  0.53  49
PPM 152273     07:16:08.6 +01:26:12  9.1  0.16  50
PPM 152302     07:16:53.3 +01:28:15 10.8  0.14  49
14YY49         07:16:39.0 +01:20:50 16.5        49
Positions are for J2000

Event circumstances last updated at 2019/06/07 23:15:23 UT

Marc W. Buie, Southwest Research Institute

RECON