RECON: TNO occultation with 10MQ116

Event between 10MQ116 and star GA1120:00167393 with event index number of 1047960

Geocentric closest approach at 2020/01/20 04:50:05 UTC

J2000 position of star is 01:23:57.5 +23:46:49
Equinox of date position of star is 01:25:00.3 +23:52:46
Stellar brightness G=14.9, use SENSEUP=128
Star is 141 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 46.9 AU from the Sun and 46.9 AU from the Earth.
The TNO is moving 6.6 km/sec on the sky relative to the star, or, 0.7 arcsec/hr.
The 1-sigma error in the time of the event is 425 seconds.
The 1-sigma cross-track error in the shadow position is 2662 km.
The sky-plane scale is 34031.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.4
Diameter=498.9 km assuming a 5% albedo -- 75.3 sec chord
Diameter=203.7 km assuming a 30% albedo -- 30.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 10MQ116, (2020/01/20 04:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.4 +16:32:53  0.8 45.43 173
6Bet Ari       01:55:45.1 +20:54:19  2.6  7.69 148
PPM 090772     01:26:41.7 +23:36:55  6.5  0.46 142
PPM 090755     01:25:36.8 +24:02:57  9.6  0.21 141
10MQ116        01:25:03.4 +23:53:04 14.9       142
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 2.1 sigma about the mid-time.
The median site spacing is 7.1 km RECON observability=1.0 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 04:55:04 -54.8 Dark Down 32.5 275.1 Up 04:40:04 - 05:10:04 11007
SwRI 04:55:05 -54.8 Dark Down 32.5 275.1 Up 04:40:05 - 05:10:05 10999
Kelowna 04:51:07 -41.2 Dark Down 42.5 256.1 Up 04:36:07 - 05:06:07 10741
Summerland 04:51:07 -41.0 Dark Down 42.8 255.9 Up 04:36:07 - 05:06:07 10723
Penticton 04:51:07 -41.2 Dark Down 42.7 256.3 Up 04:36:07 - 05:06:07 10721
Okanagan Falls 04:51:07 -41.3 Dark Down 42.8 256.5 Up 04:36:07 - 05:06:07 10713
Anarchist Mountain Observatory 04:51:07 -41.5 Dark Down 42.7 257.0 Up 04:36:07 - 05:06:07 10711
Oliver 04:51:07 -41.3 Dark Down 42.8 256.6 Up 04:36:07 - 05:06:07 10708
Oroville 04:51:07 -41.5 Dark Down 42.8 257.0 Up 04:36:07 - 05:06:07 10705
Tonasket 04:51:07 -41.6 Dark Down 42.8 257.2 Up 04:36:07 - 05:06:07 10697
Okanogan 04:51:07 -41.6 Dark Down 43.0 257.3 Up 04:36:07 - 05:06:07 10678
Brewster 04:51:07 -41.5 Dark Down 43.2 257.4 Up 04:36:07 - 05:06:07 10659
Manson/Chelan 04:51:07 -41.3 Dark Down 43.5 257.3 Up 04:36:07 - 05:06:07 10635
Entiat 04:51:07 -41.4 Dark Down 43.6 257.4 Up 04:36:07 - 05:06:07 10623
Wenatchee 04:51:07 -41.4 Dark Down 43.7 257.6 Up 04:36:07 - 05:06:07 10609
PNWRO 04:52:45 -43.0 Dark Down 42.7 260.4 Up 04:37:45 - 05:07:45 10607
Pasco 04:52:40 -42.7 Dark Down 42.8 260.0 Up 04:37:40 - 05:07:40 10607
Ellensburg 04:51:07 -41.3 Dark Down 43.9 257.8 Up 04:36:07 - 05:06:07 10584
George/Umatilla 04:52:46 -42.7 Dark Down 43.0 260.2 Up 04:37:46 - 05:07:46 10583
Yakima 04:52:30 -41.7 Dark Down 43.8 258.4 Up 04:37:30 - 05:07:30 10554
Toppenish/White Swan 04:52:34 -41.8 Dark Down 43.7 258.8 Up 04:37:34 - 05:07:34 10553
Goldendale 04:52:41 -41.7 Dark Down 44.1 259.0 Up 04:37:41 - 05:07:41 10509
The Dalles 04:52:40 -41.5 Dark Down 44.4 258.9 Up 04:37:40 - 05:07:40 10482
Maupin 04:52:49 -41.7 Dark Down 44.4 259.4 Up 04:37:49 - 05:07:49 10468
Madras/Culver 04:52:55 -41.8 Dark Down 44.5 259.9 Up 04:37:55 - 05:07:55 10442
Redmond 04:53:01 -41.9 Dark Down 44.5 260.2 Up 04:38:01 - 05:08:01 10423
Bend 04:53:04 -41.9 Dark Down 44.7 260.4 Up 04:38:04 - 05:08:04 10406
Sisters 04:53:00 -41.6 Dark Down 44.8 259.9 Up 04:38:00 - 05:08:00 10405
Oregon Observatory 04:53:06 -41.8 Dark Down 44.8 260.4 Up 04:38:06 - 05:08:06 10392
DCO 04:55:53 -50.4 Dark Down 38.2 274.2 Up 04:40:53 - 05:10:53 10392
North Lake 04:53:16 -42.4 Dark Down 44.5 261.5 Up 04:38:16 - 05:08:16 10389
Paisley 04:53:28 -42.8 Dark Down 44.2 262.4 Up 04:38:28 - 05:08:28 10381
La Pine/Gilchrist 04:53:08 -41.8 Dark Down 44.9 260.6 Up 04:38:08 - 05:08:08 10380
Patrick 04:55:43 -49.7 Dark Down 38.9 273.6 Up 04:40:43 - 05:10:43 10370
Lakeview 04:53:36 -43.0 Dark Down 44.1 263.0 Up 04:38:36 - 05:08:36 10367
Kingman/Dolan Springs 04:55:46 -49.6 Dark Down 39.0 273.7 Up 04:40:46 - 05:10:46 10349
Cedarville 04:53:47 -43.3 Dark Down 44.1 263.8 Up 04:38:47 - 05:08:47 10345
Henderson 04:55:30 -48.7 Dark Down 39.8 272.4 Up 04:40:30 - 05:10:30 10343
Indian Springs 04:55:20 -48.0 Dark Down 40.5 271.6 Up 04:40:20 - 05:10:20 10334
Tonopah 04:54:49 -46.4 Dark Down 41.8 269.3 Up 04:39:49 - 05:09:49 10328
Laughlin/Bullhead City 04:55:44 -49.2 Dark Down 39.4 273.4 Up 04:40:44 - 05:10:44 10320
Searchlight/Boulder City 04:55:37 -48.9 Dark Down 39.7 273.0 Up 04:40:37 - 05:10:37 10317
Chiloquin 04:53:23 -41.8 Dark Down 45.2 261.4 Up 04:38:23 - 05:08:23 10309
Mohave Valley 04:55:50 -49.3 Dark Down 39.4 273.6 Up 04:40:50 - 05:10:50 10306
Tulelake 04:53:33 -42.3 Dark Down 45.0 262.4 Up 04:38:33 - 05:08:33 10299
Lake Havasu City 04:55:58 -49.6 Dark Down 39.1 274.1 Up 04:40:58 - 05:10:58 10299
Klamath Falls 04:53:30 -42.0 Dark Down 45.2 261.9 Up 04:38:30 - 05:08:30 10297
Beatty 04:55:13 -47.1 Dark Down 41.4 270.6 Up 04:40:13 - 05:10:13 10293
Parker 04:56:01 -49.7 Dark Down 39.1 274.4 Up 04:41:01 - 05:11:01 10282
Hawthorne 04:54:39 -45.2 Dark Down 42.9 267.9 Up 04:39:39 - 05:09:39 10277
Yerington 04:54:27 -44.7 Dark Down 43.4 267.1 Up 04:39:27 - 05:09:27 10273
Reno 04:54:19 -44.1 Dark Down 43.9 266.1 Up 04:39:19 - 05:09:19 10266
Susanville 04:54:02 -43.2 Dark Down 44.5 264.6 Up 04:39:02 - 05:09:02 10266
Fall River/Burney 04:53:48 -42.5 Dark Down 45.0 263.4 Up 04:38:48 - 05:08:48 10259
Carson City 04:54:20 -44.2 Dark Down 43.9 266.5 Up 04:39:20 - 05:09:20 10249
Portola 04:54:09 -43.5 Dark Down 44.4 265.4 Up 04:39:09 - 05:09:09 10245
Gimple 04:54:03 -43.1 Dark Down 44.7 264.7 Up 04:39:03 - 05:09:03 10241
Gardnerville 04:54:25 -44.3 Dark Down 43.8 266.7 Up 04:39:25 - 05:09:25 10239
Blythe 04:56:05 -49.5 Dark Down 39.3 274.7 Up 04:41:05 - 05:11:05 10238
Greenville 04:54:03 -43.1 Dark Down 44.7 264.7 Up 04:39:03 - 05:09:03 10237
Bishop 04:54:59 -45.7 Dark Down 42.7 269.2 Up 04:39:59 - 05:09:59 10230
Quincy 04:54:02 -43.1 Dark Down 44.7 264.9 Up 04:39:02 - 05:09:02 10227
Lee Vining 04:54:45 -45.0 Dark Down 43.3 268.1 Up 04:39:45 - 05:09:45 10222
Lone Pine 04:55:07 -46.1 Dark Down 42.4 270.1 Up 04:40:07 - 05:10:07 10209
Yuma 04:56:19 -49.7 Dark Down 39.2 275.5 Up 04:41:19 - 05:11:19 10186
Calipatria 04:56:10 -48.8 Dark Down 40.0 274.7 Up 04:41:10 - 05:11:10 10160
Idyllwild 04:55:55 -47.7 Dark Down 41.1 273.5 Up 04:40:55 - 05:10:55 10129
Wildwood 04:55:43 -46.1 Dark Down 42.7 272.2 Up 04:40:43 - 05:10:43 10044
CPSLO 04:55:13 -44.2 Dark Down 44.5 269.8 Up 04:40:13 - 05:10:13 9997

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 10MQ116, (2020/01/20 04:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 45.43 173
6Bet Ari       01:54:38.5 +20:48:27  2.6  7.69 148
PPM 090772     01:25:35.7 +23:30:41  6.5  0.46 142
PPM 090755     01:24:30.8 +23:56:42  9.6  0.21 141
10MQ116        01:23:57.5 +23:46:49 14.9       141
Positions are for J2000

Event circumstances last updated at 2019/02/01 22:25:04 UT

Marc W. Buie, Southwest Research Institute

RECON