RECON: TNO occultation with 03YJ179

Event between 03YJ179 and star GA1140:01858688 with event index number of 222512

Geocentric closest approach at 2019/11/10 10:13:58 UTC

J2000 position of star is 06:06:45.7 +24:41:38
Equinox of date position of star is 06:07:55.1 +24:41:26
Stellar brightness G=16.2, use SENSEUP=128
Star is 68 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 40.3 AU from the Sun and 39.6 AU from the Earth.
The TNO is moving 17.0 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 1493 seconds.
The 1-sigma cross-track error in the shadow position is 4237 km.
The sky-plane scale is 28698.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=234.4 km assuming a 5% albedo -- 13.8 sec chord
Diameter=95.7 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03YJ179, (2019/11/10 10:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:14.9 +07:24:33  0.4 17.51  65
Alnath         05:27:32.9 +28:37:21  1.6  9.85  60
1 Gem          06:05:19.7 +23:15:38  4.2  1.55  68
PPM 095455     06:09:23.8 +23:51:25  8.3  0.89  69
PPM 095401     06:07:56.4 +24:44:50  9.4  0.06  68
03YJ179        06:07:58.9 +24:41:25 16.2        69
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 0.6 sigma about the mid-time.
The median site spacing is 22.6 km RECON observability=1.0 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:14:40 -45.1 Dark Up 64.0 163.0 Up 09:59:40 - 10:29:40 8822
Summerland 10:14:42 -45.3 Dark Up 64.0 162.2 Up 09:59:42 - 10:29:42 8818
Penticton 10:14:41 -45.4 Dark Up 64.3 162.4 Up 09:59:41 - 10:29:41 8786
Okanagan Falls 10:14:41 -45.5 Dark Up 64.5 162.2 Up 09:59:41 - 10:29:41 8766
Oliver 10:14:41 -45.6 Dark Up 64.7 162.2 Up 09:59:41 - 10:29:41 8750
Anarchist Mountain Observatory 10:14:41 -45.5 Dark Up 64.9 162.5 Up 09:59:41 - 10:29:41 8732
Oroville 10:14:41 -45.6 Dark Up 64.9 162.3 Up 09:59:41 - 10:29:41 8725
Tonasket 10:14:41 -45.7 Dark Up 65.2 162.1 Up 09:59:41 - 10:29:41 8701
Okanogan 10:14:41 -46.0 Dark Up 65.4 161.6 Up 09:59:41 - 10:29:41 8667
Brewster 10:14:43 -46.3 Dark Up 65.7 161.0 Up 09:59:43 - 10:29:43 8640
Manson/Chelan 10:14:44 -46.6 Dark Up 65.8 160.0 Up 09:59:44 - 10:29:44 8619
Entiat 10:14:45 -46.7 Dark Up 66.0 159.7 Up 09:59:45 - 10:29:45 8596
Wenatchee 10:14:45 -46.9 Dark Up 66.2 159.3 Up 09:59:45 - 10:29:45 8571
Ellensburg 10:14:46 -47.3 Dark Up 66.5 158.5 Up 09:59:46 - 10:29:46 8528
Yakima 10:14:47 -47.5 Dark Up 66.9 158.1 Up 09:59:47 - 10:29:47 8487
Toppenish/White Swan 10:14:46 -47.5 Dark Up 67.1 158.3 Up 09:59:46 - 10:29:46 8464
Pasco 10:14:40 -46.8 Dark Up 67.5 161.0 Up 09:59:40 - 10:29:40 8450
PNWRO 10:14:40 -46.8 Dark Up 67.8 161.4 Up 09:59:40 - 10:29:40 8424
George/Umatilla 10:14:40 -47.1 Dark Up 67.8 160.3 Up 09:59:40 - 10:29:40 8415
Goldendale 10:14:49 -48.0 Dark Up 67.5 156.9 Up 09:59:49 - 10:29:49 8408
The Dalles 10:14:51 -48.4 Dark Up 67.6 155.8 Up 09:59:51 - 10:29:51 8385
Maupin 10:14:50 -48.5 Dark Up 68.0 155.6 Up 09:59:50 - 10:29:50 8341
Madras/Culver 10:14:50 -48.8 Dark Up 68.5 155.0 Up 09:59:50 - 10:29:50 8284
Sisters 10:14:53 -49.3 Dark Up 68.7 153.6 Up 09:59:53 - 10:29:53 8250
Redmond 10:14:51 -49.0 Dark Up 68.8 154.5 Up 09:59:51 - 10:29:51 8247
Bend 10:14:51 -49.2 Dark Up 69.0 153.9 Up 09:59:51 - 10:29:51 8225
Oregon Observatory 10:14:52 -49.4 Dark Up 69.1 153.4 Up 09:59:52 - 10:29:52 8207
La Pine/Gilchrist 10:14:53 -49.5 Dark Up 69.3 153.0 Up 09:59:53 - 10:29:53 8186
North Lake 10:14:51 -49.3 Dark Up 69.8 153.9 Up 09:59:51 - 10:29:51 8139
Paisley 10:14:49 -49.4 Dark Up 70.5 154.1 Up 09:59:49 - 10:29:49 8080
Chiloquin 10:14:54 -50.3 Dark Up 70.1 150.7 Up 09:59:54 - 10:29:54 8069
Klamath Falls 10:14:55 -50.4 Dark Up 70.5 150.5 Up 09:59:55 - 10:29:55 8033
Lakeview 10:14:47 -49.5 Dark Up 71.0 154.0 Up 09:59:47 - 10:29:47 8025
Tulelake 10:14:53 -50.3 Dark Up 70.8 150.8 Up 09:59:53 - 10:29:53 8004
Cedarville 10:14:48 -49.7 Dark Up 71.6 153.6 Up 09:59:48 - 10:29:48 7955
Fall River/Burney 10:14:54 -50.7 Dark Up 71.6 149.7 Up 09:59:54 - 10:29:54 7907
Niwot 10:13:34 -39.6 Dark Up 73.8 199.3 Up 09:58:34 - 10:28:34 7842
Susanville 10:14:51 -50.5 Dark Up 72.4 150.7 Up 09:59:51 - 10:29:51 7838
Greenville 10:14:52 -50.8 Dark Up 72.6 149.5 Up 09:59:52 - 10:29:52 7809
Gimple 10:14:51 -50.7 Dark Up 72.6 149.7 Up 09:59:51 - 10:29:51 7808
Quincy 10:14:52 -50.9 Dark Up 72.7 149.2 Up 09:59:52 - 10:29:52 7787
Portola 10:14:50 -50.6 Dark Up 73.0 150.3 Up 09:59:50 - 10:29:50 7773
Reno 10:14:47 -50.2 Dark Up 73.5 151.7 Up 09:59:47 - 10:29:47 7743
Carson City 10:14:47 -50.4 Dark Up 73.8 151.2 Up 09:59:47 - 10:29:47 7704
Yerington 10:14:43 -50.0 Dark Up 74.2 152.7 Up 09:59:43 - 10:29:43 7682
Gardnerville 10:14:47 -50.4 Dark Up 74.1 150.9 Up 09:59:47 - 10:29:47 7678
Hawthorne 10:14:41 -49.8 Dark Up 74.8 153.6 Up 09:59:41 - 10:29:41 7632
Tonopah 10:14:33 -48.9 Dark Up 75.7 157.5 Up 09:59:33 - 10:29:33 7580
Lee Vining 10:14:43 -50.3 Dark Up 75.2 151.1 Up 09:59:43 - 10:29:43 7571
Bishop 10:14:39 -50.0 Dark Up 75.9 152.3 Up 09:59:39 - 10:29:39 7506
Beatty 10:14:31 -49.0 Dark Up 76.9 157.3 Up 09:59:31 - 10:29:31 7455
Lone Pine 10:14:39 -50.0 Dark Up 76.7 152.0 Up 09:59:39 - 10:29:39 7423
Indian Springs 10:14:26 -48.2 Dark Up 77.5 160.9 Up 09:59:26 - 10:29:26 7420
Henderson 10:14:22 -47.9 Dark Up 78.2 162.9 Up 09:59:22 - 10:29:22 7362
Searchlight/Boulder City 10:14:22 -48.0 Dark Up 78.8 162.4 Up 09:59:22 - 10:29:22 7300
Patrick 10:14:16 -47.2 Dark Up 79.0 167.0 Up 09:59:16 - 10:29:16 7296
CPSLO 10:14:52 -52.4 Dark Up 76.7 140.2 Up 09:59:52 - 10:29:52 7286
Kingman/Dolan Springs 10:14:18 -47.4 Dark Up 79.2 165.9 Up 09:59:18 - 10:29:18 7271
Laughlin/Bullhead City 10:14:21 -47.8 Dark Up 79.1 163.5 Up 09:59:21 - 10:29:21 7268
DCO 10:14:13 -46.7 Dark Up 79.4 170.0 Up 09:59:13 - 10:29:13 7264
Mohave Valley 10:14:21 -47.8 Dark Up 79.4 163.1 Up 09:59:21 - 10:29:21 7238
Lake Havasu City 10:14:19 -47.7 Dark Up 79.8 163.6 Up 09:59:19 - 10:29:19 7195
Parker 10:14:18 -47.8 Dark Up 80.2 163.2 Up 09:59:18 - 10:29:18 7156
Wildwood 10:14:42 -51.2 Dark Up 78.6 143.9 Up 09:59:42 - 10:29:42 7150
Idyllwild 10:14:31 -49.8 Dark Up 79.8 150.7 Up 09:59:31 - 10:29:31 7109
Blythe 10:14:20 -48.1 Dark Up 80.6 160.7 Up 09:59:20 - 10:29:20 7099
Calipatria 10:14:25 -49.0 Dark Up 80.8 154.7 Up 09:59:25 - 10:29:25 7043
Yuma 10:14:21 -48.3 Dark Up 81.5 158.5 Up 09:59:21 - 10:29:21 6997

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 03YJ179, (2019/11/10 10:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 17.51  65
Alnath         05:26:17.5 +28:36:23  1.6  9.85  60
1 Gem          06:04:07.2 +23:15:46  4.2  1.55  68
PPM 095455     06:08:11.0 +23:51:41  8.3  0.89  69
PPM 095401     06:06:43.2 +24:45:03  9.4  0.06  68
03YJ179        06:06:45.7 +24:41:38 16.2        68
Positions are for J2000

Event circumstances last updated at 2018/10/24 22:04:28 UT

Marc W. Buie, Southwest Research Institute

RECON