RECON: TNO occultation with 05VZ122

Event between 05VZ122 and star UC4-524-014398 with event index number of 93434

Geocentric closest approach at 2017/12/26 01:26:19 UTC

J2000 position of star is 05:37:41.7 +14:47:53
Equinox of date position of star is 05:38:37.2 +14:48:24
Stellar brightness R=13.6
Star is 84 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 35.3 AU from the Sun and 34.4 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 842 seconds.
The 1-sigma cross-track error in the shadow position is 1902 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=205.1 km assuming a 5% albedo -- 8.3 sec chord
Diameter=83.7 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 05VZ122, (2017/12/26 01:26UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:08.8 +07:24:32  0.4  8.54  87
Bellatrix      05:26:05.8 +06:21:52  1.6  8.99  80
35 Ori         05:34:55.7 +14:19:00  5.6  1.04  83
PPM 121221     05:40:09.1 +14:33:56  7.5  0.42  84
PPM 121218     05:39:58.3 +14:51:41  9.4  0.31  84
05VZ122        05:38:43.3 +14:48:28 13.6        84
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 0.0 km RECON observability=0.0 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)
Oroville 01:29:03 -12.9 AT Up 13.1 82.5 Really Low 00:18:23 - 02:39:43 5056
Tonasket 01:29:04 -12.8 AT Up 13.1 82.4 Really Low 00:18:24 - 02:39:44 5040
Okanogan 01:29:05 -12.6 AT Up 13.0 82.2 Really Low 00:18:25 - 02:39:45 5020
Brewster 01:29:06 -12.3 AT Up 12.8 82.0 Really Low 00:18:26 - 02:39:46 5005
Manson/Chelan 01:29:07 -12.0 AT Up 12.5 81.7 Really Low 00:18:27 - 02:39:47 4997
Entiat 01:29:08 -11.9 CT Up 12.5 81.6 Really Low 00:18:28 - 02:39:48 4983
Wenatchee 01:29:09 -11.8 CT Up 12.4 81.5 Really Low 00:18:29 - 02:39:49 4967
Ellensburg 01:29:10 -11.5 CT Up 12.2 81.2 Really Low 00:18:30 - 02:39:50 4942
Yakima 01:29:11 -11.3 CT Up 12.1 81.2 Really Low 00:18:31 - 02:39:51 4914
Toppenish/White Swan 01:29:12 -11.3 CT Up 12.2 81.2 Really Low 00:18:32 - 02:39:52 4895
Pasco 01:29:12 -12.1 AT Up 13.0 82.1 Really Low 00:18:32 - 02:39:52 4861
PNWRO 01:29:13 -12.2 AT Up 13.1 82.2 Really Low 00:18:33 - 02:39:53 4838
George/Umatilla 01:29:13 -11.9 CT Up 12.8 81.9 Really Low 00:18:33 - 02:39:53 4841
Goldendale 01:29:14 -10.9 CT Up 11.8 80.8 Really Low 00:18:34 - 02:39:54 4863
The Dalles 01:29:15 -10.5 CT Up 11.5 80.5 Really Low 00:18:35 - 02:39:55 4854
Maupin 01:29:16 -10.5 CT Up 11.5 80.5 Really Low 00:18:36 - 02:39:56 4821
Madras/Culver 01:29:18 -10.2 CT Up 11.4 80.4 Really Low 00:18:38 - 02:39:58 4782
Sisters 01:29:19 -9.8 CT Up 11.0 80.0 Really Low 00:18:39 - 02:39:59 4767
Redmond 01:29:19 -10.0 CT Up 11.3 80.3 Really Low 00:18:39 - 02:39:59 4757
Bend 01:29:20 -9.9 CT Up 11.2 80.1 Really Low 00:18:40 - 02:40:00 4744
Oregon Observatory 01:29:20 -9.7 CT Up 11.1 80.0 Really Low 00:18:40 - 02:40:00 4734
LaPine/Gilchrist 01:29:21 -9.6 CT Up 11.0 80.0 Really Low 00:18:41 - 02:40:01 4719
North Lake 01:29:22 -9.8 CT Up 11.3 80.3 Really Low 00:18:42 - 02:40:02 4674
Paisley 01:29:25 -9.9 CT Up 11.5 80.4 Really Low 00:18:45 - 02:40:05 4624
Chiloquin 01:29:25 -8.9 CT Up 10.5 79.5 Really Low 00:18:45 - 02:40:05 4642
Klamath Falls 01:29:26 -8.9 CT Up 10.5 79.5 Really Low 00:18:46 - 02:40:06 4614
Lakeview 01:29:26 -9.8 CT Up 11.6 80.4 Really Low 00:18:46 - 02:40:06 4581
Tulelake 01:29:27 -9.0 CT Up 10.7 79.7 Really Low 00:18:47 - 02:40:07 4587
Cedarville 01:29:28 -9.7 CT Up 11.6 80.4 Really Low 00:18:48 - 02:40:08 4526
Fall River/Burney 01:29:30 -8.7 CT Up 10.6 79.6 Really Low 00:18:50 - 02:40:10 4514
Susanville 01:29:32 -8.9 CT Up 11.1 79.9 Really Low 00:18:52 - 02:40:12 4448
Greenville 01:29:32 -8.6 CT Up 10.8 79.7 Really Low 00:18:52 - 02:40:12 4433
Niwot 01:29:24 -20.0 Dark Up 22.8 89.5 Low 00:18:44 - 02:40:04 4085
Quincy 01:29:33 -8.5 CT Up 10.8 79.6 Really Low 00:18:53 - 02:40:13 4416
Portola 01:29:33 -8.8 CT Up 11.1 79.9 Really Low 00:18:53 - 02:40:13 4396
Reno 01:29:34 -9.2 CT Up 11.6 80.3 Really Low 00:18:54 - 02:40:14 4360
Carson City 01:29:35 -9.1 CT Up 11.5 80.2 Really Low 00:18:55 - 02:40:15 4330
Yerington 01:29:35 -9.4 CT Up 12.0 80.5 Really Low 00:18:55 - 02:40:15 4300
Gardnerville 01:29:36 -9.0 CT Up 11.5 80.2 Really Low 00:18:56 - 02:40:16 4309
Hawthorne 01:29:36 -9.7 CT Up 12.3 80.8 Really Low 00:18:56 - 02:40:16 4250
Lee Vining 01:29:38 -9.1 CT Up 11.8 80.4 Really Low 00:18:58 - 02:40:18 4215
Tonopah 01:29:37 -10.5 CT Up 13.3 81.5 Really Low 00:18:57 - 02:40:17 4179
Bishop 01:29:40 -9.4 CT Up 12.3 80.7 Really Low 00:19:00 - 02:40:20 4148
Lone Pine 01:29:42 -9.4 CT Up 12.5 80.7 Really Low 00:19:02 - 02:40:22 4075
Beatty 01:29:40 -10.4 CT Up 13.5 81.5 Really Low 00:19:00 - 02:40:20 4071
Indian Springs 01:29:41 -11.1 CT Up 14.3 82.0 Really Low 00:19:01 - 02:40:21 4018
Henderson 01:29:42 -11.5 CT Up 14.8 82.3 Really Low 00:19:02 - 02:40:22 3955
Searchlight/Boulder City 01:29:44 -11.3 CT Up 14.8 82.2 Really Low 00:19:04 - 02:40:24 3904
CPSLO 01:29:46 -6.9 CT Up 10.2 79.0 Really Low 00:19:06 - 02:40:26 4024
Kingman/Dolan Springs 01:29:44 -11.9 CT Up 15.5 82.6 Really Low 00:19:04 - 02:40:24 3860
Laughlin/Bullhead City 01:29:44 -11.5 CT Up 15.0 82.3 Really Low 00:19:04 - 02:40:24 3870
DCO 01:29:44 -12.5 AT Up 16.2 83.0 Really Low 00:19:04 - 02:40:24 3831
Mohave Valley 01:29:45 -11.4 CT Up 15.0 82.2 Really Low 00:19:05 - 02:40:25 3846
Lake Havasu City 01:29:46 -11.4 CT Up 15.2 82.3 Really Low 00:19:06 - 02:40:26 3804
Parker 01:29:47 -11.3 CT Up 15.2 82.2 Really Low 00:19:07 - 02:40:27 3772
Idyllwild 01:29:49 -9.3 CT Up 13.1 80.8 Really Low 00:19:09 - 02:40:29 3795
Blythe 01:29:49 -10.9 CT Up 14.8 81.9 Really Low 00:19:09 - 02:40:29 3733
Calipatria 01:29:50 -10.0 CT Up 14.0 81.3 Really Low 00:19:10 - 02:40:30 3711
Yuma 01:29:51 -10.6 CT Up 14.7 81.6 Really Low 00:19:11 - 02:40:31 3651

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.

Event circumstances last updated at 2016/03/14 18:01:13 UT

Marc W. Buie, Southwest Research Institute

RECON