RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1120:00665725 with event index number of 235956

Geocentric closest approach at 2018/10/27 04:56:40 UTC

J2000 position of star is 04:26:55.9 +23:35:17
Equinox of date position of star is 04:28:02.4 +23:37:42
Stellar brightness G=15.0, use SENSEUP=128
Star is 7 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 15.3 AU from the Sun and 14.5 AU from the Earth.
The TNO is moving 15.6 km/sec on the sky relative to the star, or, 5.3 arcsec/hr.
The 1-sigma error in the time of the event is 220 seconds.
The 1-sigma cross-track error in the shadow position is 1299 km.
The sky-plane scale is 10503.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=78.0 km assuming a 5% albedo -- 5.0 sec chord
Diameter=31.8 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2018/10/27 04:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.2 +16:32:44  0.8  7.39   5
44Zet Per      03:55:19.2 +31:56:17  2.8 11.01  16
72 Tau         04:28:25.2 +23:02:13  5.3  0.60   6
PPM 093565     04:31:30.5 +23:37:43  7.6  0.79   7
PPM 093525     04:28:19.8 +23:33:14  9.1  0.10   7
11UQ62         04:28:03.9 +23:37:45 15.0         7
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 4.1 sigma about the mid-time.
The median site spacing is 16.2 km RECON observability=1.0 and success probability=0.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:59:35 -40.4 Dark Up 26.7 84.2 Low 04:44:35 - 05:14:35 5828
Oroville 04:59:39 -40.8 Dark Up 26.7 84.0 Low 04:44:39 - 05:14:39 5795
Tonasket 04:59:41 -41.0 Dark Up 26.7 83.9 Low 04:44:41 - 05:14:41 5784
Okanogan 04:59:43 -41.1 Dark Up 26.6 83.7 Low 04:44:43 - 05:14:43 5772
Manson/Chelan 04:59:46 -41.0 Dark Up 26.2 83.0 Low 04:44:46 - 05:14:46 5767
Brewster 04:59:45 -41.1 Dark Up 26.4 83.4 Low 04:44:45 - 05:14:45 5765
Entiat 04:59:48 -41.1 Dark Up 26.1 82.9 Low 04:44:48 - 05:14:48 5758
Wenatchee 04:59:50 -41.2 Dark Up 26.0 82.7 Low 04:44:50 - 05:14:50 5748
Ellensburg 04:59:53 -41.2 Dark Up 25.8 82.3 Low 04:44:53 - 05:14:53 5735
Yakima 04:59:55 -41.4 Dark Up 25.7 82.1 Low 04:44:55 - 05:14:55 5714
Toppenish/White Swan 04:59:56 -41.7 Dark Up 25.8 82.2 Low 04:44:56 - 05:14:56 5697
The Dalles 05:00:01 -41.6 Dark Up 25.2 81.3 Low 04:45:01 - 05:15:01 5683
Goldendale 05:00:00 -41.7 Dark Up 25.5 81.6 Low 04:45:00 - 05:15:00 5683
Maupin 05:00:04 -41.9 Dark Up 25.2 81.2 Low 04:45:04 - 05:15:04 5657
Pasco 04:59:57 -42.5 Dark Up 26.7 83.0 Low 04:44:57 - 05:14:57 5648
George/Umatilla 04:59:58 -42.5 Dark Up 26.5 82.7 Low 04:44:58 - 05:14:58 5637
Madras/Culver 05:00:08 -42.1 Dark Up 25.1 80.9 Low 04:45:08 - 05:15:08 5629
Sisters 05:00:10 -42.0 Dark Up 24.7 80.5 Low 04:45:10 - 05:15:10 5627
PNWRO 04:59:58 -42.7 Dark Up 26.8 83.0 Low 04:44:58 - 05:14:58 5627
Redmond 05:00:10 -42.2 Dark Up 25.0 80.7 Low 04:45:10 - 05:15:10 5611
Bend 05:00:11 -42.3 Dark Up 24.9 80.5 Low 04:45:11 - 05:15:11 5605
Oregon Observatory 05:00:12 -42.3 Dark Up 24.8 80.4 Low 04:45:12 - 05:15:12 5600
La Pine/Gilchrist 05:00:14 -42.3 Dark Up 24.7 80.2 Low 04:45:14 - 05:15:14 5590
North Lake 05:00:16 -42.9 Dark Up 25.1 80.4 Low 04:45:16 - 05:15:16 5545
Chiloquin 05:00:21 -42.6 Dark Up 24.3 79.5 Low 04:45:21 - 05:15:21 5540
Klamath Falls 05:00:22 -42.8 Dark Up 24.3 79.4 Low 04:45:22 - 05:15:22 5518
Paisley 05:00:19 -43.4 Dark Up 25.2 80.4 Low 04:45:19 - 05:15:19 5500
Tulelake 05:00:24 -43.1 Dark Up 24.5 79.5 Low 04:45:24 - 05:15:24 5491
Lakeview 05:00:23 -43.8 Dark Up 25.3 80.3 Low 04:45:23 - 05:15:23 5464
Fall River/Burney 05:00:29 -43.6 Dark Up 24.4 79.1 Low 04:45:29 - 05:15:29 5435
Cedarville 05:00:26 -44.2 Dark Up 25.3 80.1 Low 04:45:26 - 05:15:26 5419
Susanville 05:00:33 -44.4 Dark Up 24.8 79.3 Low 04:45:33 - 05:15:33 5370
Greenville 05:00:35 -44.3 Dark Up 24.5 79.0 Low 04:45:35 - 05:15:35 5364
Gimple 05:00:35 -44.4 Dark Up 24.6 79.1 Low 04:45:35 - 05:15:35 5361
Quincy 05:00:36 -44.4 Dark Up 24.5 78.9 Low 04:45:36 - 05:15:36 5351
Portola 05:00:36 -44.8 Dark Up 24.8 79.2 Low 04:45:36 - 05:15:36 5326
Reno 05:00:37 -45.3 Dark Up 25.3 79.4 Low 04:45:37 - 05:15:37 5285
Carson City 05:00:40 -45.5 Dark Up 25.2 79.3 Low 04:45:40 - 05:15:40 5261
Gardnerville 05:00:40 -45.7 Dark Up 25.2 79.2 Low 04:45:40 - 05:15:40 5244
Yerington 05:00:40 -46.1 Dark Up 25.7 79.5 Low 04:45:40 - 05:15:40 5225
Hawthorne 05:00:42 -46.6 Dark Up 26.0 79.6 Low 04:45:42 - 05:15:42 5174
Lee Vining 05:00:46 -46.5 Dark Up 25.6 79.1 Low 04:45:46 - 05:15:46 5157
Bishop 05:00:49 -47.3 Dark Up 26.0 79.2 Low 04:45:49 - 05:15:49 5089
Tonopah 05:00:44 -47.8 Dark Up 27.0 80.2 Low 04:45:44 - 05:15:44 5089
CPSLO 05:01:02 -46.5 Dark Up 23.8 77.1 Low 04:46:02 - 05:16:02 5042
Lone Pine 05:00:53 -47.9 Dark Up 26.1 79.0 Low 04:45:53 - 05:15:53 5025
Beatty 05:00:50 -48.7 Dark Up 27.2 79.8 Low 04:45:50 - 05:15:50 4993
Indian Springs 05:00:51 -49.6 Dark Up 28.0 80.2 Low 04:45:51 - 05:15:51 4928
Wildwood 05:01:07 -48.5 Dark Up 25.3 77.6 Low 04:46:07 - 05:16:07 4875
Henderson 05:00:53 -50.4 Dark Up 28.5 80.3 Low 04:45:53 - 05:15:53 4862
Searchlight/Boulder City 05:00:56 -50.7 Dark Up 28.4 80.0 Low 04:45:56 - 05:15:56 4820
Laughlin/Bullhead City 05:00:58 -51.1 Dark Up 28.7 80.1 Low 04:45:58 - 05:15:58 4784
Patrick 05:00:55 -51.5 Dark Up 29.3 80.5 Low 04:45:55 - 05:15:55 4772
Idyllwild 05:01:07 -50.1 Dark Up 26.7 78.3 Low 04:46:07 - 05:16:07 4771
Mohave Valley 05:00:58 -51.2 Dark Up 28.6 79.9 Low 04:45:58 - 05:15:58 4765
Kingman/Dolan Springs 05:00:57 -51.4 Dark Up 29.1 80.3 Low 04:45:57 - 05:15:57 4764
Niwot 05:00:15 -54.3 Dark Up 36.5 88.4 Up 04:45:15 - 05:15:15 4746
Lake Havasu City 05:01:00 -51.6 Dark Up 28.8 79.8 Low 04:46:00 - 05:16:00 4726
DCO 05:00:56 -52.1 Dark Up 29.8 80.7 Low 04:45:56 - 05:15:56 4721
Parker 05:01:02 -51.7 Dark Up 28.7 79.7 Low 04:46:02 - 05:16:02 4699
Calipatria 05:01:09 -51.2 Dark Up 27.6 78.6 Low 04:46:09 - 05:16:09 4677
Blythe 05:01:06 -51.7 Dark Up 28.4 79.2 Low 04:46:06 - 05:16:06 4674
Yuma 05:01:10 -52.1 Dark Up 28.2 78.7 Low 04:46:10 - 05:16:10 4608

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 11UQ62, (2018/10/27 04:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.39   5
44Zet Per      03:54:07.9 +31:53:01  2.8 11.01  16
72 Tau         04:27:17.5 +22:59:45  5.3  0.60   6
PPM 093565     04:30:22.5 +23:35:20  7.6  0.79   7
PPM 093525     04:27:11.8 +23:30:47  9.1  0.10   7
11UQ62         04:26:55.9 +23:35:17 15.0         7
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:32:04 UT

Marc W. Buie, Southwest Research Institute

RECON