RECON: TNO occultation with 07RH283

Event between 07RH283 and star GA1240:00795852 with event index number of 183464

Geocentric closest approach at 2019/03/18 05:07:31 UTC

J2000 position of star is 03:42:01.0 +34:38:00
Equinox of date position of star is 03:43:11.8 +34:41:29
Stellar brightness G=16.1, use SENSEUP=128
Star is 76 degrees from the moon. Moon is 88% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 21.0 AU from the Sun and 21.4 AU from the Earth.
The TNO is moving 19.6 km/sec on the sky relative to the star, or, 4.5 arcsec/hr.
The 1-sigma error in the time of the event is 172 seconds.
The 1-sigma cross-track error in the shadow position is 1350 km.
The sky-plane scale is 15523.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=121.9 km assuming a 5% albedo -- 6.2 sec chord
Diameter=49.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 07RH283, (2019/03/18 05:08UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.5 +16:32:47  0.8 21.77  68
44Zet Per      03:55:20.7 +31:56:21  2.8  3.74  74
40 Per         03:43:36.0 +34:01:31  4.8  0.67  76
PPM 068723     03:44:37.5 +34:10:33  7.6  0.59  76
PPM 068691     03:42:37.0 +35:02:27  8.7  0.37  76
07RH283        03:43:14.7 +34:41:37 16.1        76
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 12.1 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)
Niwot 05:09:40 -42.5 Dark Up 20.0 299.0 Really Low 04:54:50 - 05:24:29 8094
Penticton 05:08:40 -28.5 Dark Up 33.2 286.3 Up 04:53:51 - 05:23:30 7936
Oroville 05:08:40 -28.9 Dark Up 32.9 286.7 Up 04:53:51 - 05:23:30 7913
Tonasket 05:08:40 -29.1 Dark Up 32.9 286.9 Up 04:53:51 - 05:23:30 7902
Okanogan 05:08:40 -29.2 Dark Up 32.9 287.0 Up 04:53:51 - 05:23:30 7880
Brewster 05:08:40 -29.3 Dark Up 32.9 287.0 Up 04:53:51 - 05:23:30 7858
Manson/Chelan 05:08:40 -29.2 Dark Up 33.1 286.9 Up 04:53:51 - 05:23:30 7832
Entiat 05:08:40 -29.3 Dark Up 33.1 287.0 Up 04:53:51 - 05:23:30 7818
Wenatchee 05:08:40 -29.4 Dark Up 33.1 287.1 Up 04:53:51 - 05:23:30 7801
Pasco 05:08:40 -30.7 Dark Up 31.9 288.5 Up 04:53:51 - 05:23:30 7801
PNWRO 05:08:40 -31.0 Dark Up 31.7 288.8 Up 04:53:51 - 05:23:30 7800
George/Umatilla 05:08:40 -30.8 Dark Up 32.0 288.6 Up 04:53:51 - 05:23:30 7775
Ellensburg 05:08:40 -29.5 Dark Up 33.1 287.2 Up 04:53:51 - 05:23:30 7771
Yakima 05:08:40 -29.7 Dark Up 33.0 287.5 Up 04:53:51 - 05:23:30 7751
Toppenish/White Swan 05:08:40 -29.9 Dark Up 32.8 287.7 Up 04:53:51 - 05:23:30 7748
Goldendale 05:08:40 -30.0 Dark Up 32.9 287.8 Up 04:53:51 - 05:23:30 7702
The Dalles 05:08:40 -29.9 Dark Up 33.1 287.7 Up 04:53:51 - 05:23:30 7674
Maupin 05:09:18 -30.3 Dark Up 32.8 288.1 Up 04:54:28 - 05:24:07 7623
Madras/Culver 05:09:20 -30.6 Dark Up 32.6 288.4 Up 04:54:30 - 05:24:09 7589
Redmond 05:09:22 -30.8 Dark Up 32.5 288.6 Up 04:54:33 - 05:24:12 7566
Sisters 05:09:22 -30.5 Dark Up 32.8 288.4 Up 04:54:32 - 05:24:11 7548
Bend 05:09:23 -30.8 Dark Up 32.6 288.7 Up 04:54:34 - 05:24:13 7547
Oregon Observatory 05:09:24 -30.8 Dark Up 32.6 288.7 Up 04:54:34 - 05:24:13 7530
North Lake 05:09:27 -31.5 Dark Up 32.0 289.4 Up 04:54:38 - 05:24:17 7518
La Pine/Gilchrist 05:09:24 -30.9 Dark Up 32.6 288.8 Up 04:54:35 - 05:24:14 7515
Paisley 05:09:30 -32.0 Dark Up 31.6 289.9 Up 04:54:40 - 05:24:19 7502
Lakeview 05:09:31 -32.4 Dark Up 31.2 290.3 Up 04:54:42 - 05:24:21 7481
Cedarville 05:09:35 -32.9 Dark Up 30.9 290.8 Up 04:54:45 - 05:24:24 7449
Chiloquin 05:09:29 -31.3 Dark Up 32.4 289.3 Up 04:54:40 - 05:24:19 7430
Klamath Falls 05:09:31 -31.5 Dark Up 32.3 289.6 Up 04:54:41 - 05:24:20 7413
Tulelake 05:09:32 -31.8 Dark Up 32.0 289.9 Up 04:54:43 - 05:24:22 7411
DCO 05:10:03 -41.1 Dark Up 23.2 297.1 Low 04:55:13 - 05:24:52 7407
Patrick 05:10:02 -40.5 Dark Up 23.8 296.6 Low 04:55:12 - 05:24:51 7389
Tonopah 05:09:50 -36.7 Dark Up 27.4 294.0 Low 04:55:01 - 05:24:40 7383
Henderson 05:09:59 -39.4 Dark Up 24.9 295.9 Low 04:55:10 - 05:24:49 7370
Indian Springs 05:09:57 -38.6 Dark Up 25.7 295.4 Low 04:55:07 - 05:24:46 7368
Kingman/Dolan Springs 05:10:02 -40.5 Dark Up 23.9 296.7 Low 04:55:13 - 05:24:52 7365
Fall River/Burney 05:09:36 -32.4 Dark Up 31.6 290.5 Up 04:54:47 - 05:24:26 7359
Susanville 05:09:39 -33.2 Dark Up 30.8 291.2 Up 04:54:50 - 05:24:29 7356
Reno 05:09:43 -34.2 Dark Up 29.9 292.1 Low 04:54:54 - 05:24:33 7343
Yerington 05:09:46 -35.0 Dark Up 29.2 292.7 Low 04:54:57 - 05:24:36 7342
Hawthorne 05:09:48 -35.6 Dark Up 28.6 293.1 Low 04:54:59 - 05:24:38 7340
Searchlight/Boulder City 05:10:01 -39.8 Dark Up 24.6 296.2 Low 04:55:12 - 05:24:51 7337
Laughlin/Bullhead City 05:10:03 -40.2 Dark Up 24.2 296.4 Low 04:55:13 - 05:24:52 7336
Beatty 05:09:55 -37.7 Dark Up 26.6 294.8 Low 04:55:06 - 05:24:45 7333
Gimple 05:09:40 -33.2 Dark Up 30.9 291.2 Up 04:54:50 - 05:24:29 7328
Portola 05:09:42 -33.6 Dark Up 30.4 291.6 Up 04:54:53 - 05:24:32 7327
Greenville 05:09:40 -33.2 Dark Up 30.9 291.2 Up 04:54:51 - 05:24:30 7324
Carson City 05:09:45 -34.4 Dark Up 29.7 292.3 Low 04:54:56 - 05:24:35 7322
Mohave Valley 05:10:04 -40.3 Dark Up 24.1 296.6 Low 04:55:14 - 05:24:53 7319
Quincy 05:09:41 -33.3 Dark Up 30.8 291.3 Up 04:54:51 - 05:24:30 7311
Gardnerville 05:09:46 -34.6 Dark Up 29.6 292.4 Low 04:54:57 - 05:24:36 7309
Lake Havasu City 05:10:05 -40.7 Dark Up 23.7 296.8 Low 04:55:16 - 05:24:55 7306
Parker 05:10:07 -40.9 Dark Up 23.5 297.0 Low 04:55:17 - 05:24:56 7285
Lee Vining 05:09:50 -35.5 Dark Up 28.7 293.2 Low 04:55:01 - 05:24:40 7278
Bishop 05:09:53 -36.3 Dark Up 28.0 293.8 Low 04:55:03 - 05:24:42 7277
Lone Pine 05:09:56 -37.0 Dark Up 27.4 294.3 Low 04:55:07 - 05:24:46 7245
Blythe 05:10:09 -41.0 Dark Up 23.5 297.1 Low 04:55:19 - 05:24:58 7234
Yuma 05:10:12 -41.5 Dark Up 23.1 297.4 Low 04:55:23 - 05:25:02 7171
Calipatria 05:10:11 -40.6 Dark Up 24.0 296.9 Low 04:55:21 - 05:25:00 7151
Idyllwild 05:10:08 -39.5 Dark Up 25.2 296.2 Low 04:55:18 - 05:24:57 7128
Wildwood 05:10:06 -37.9 Dark Up 26.7 295.3 Low 04:55:17 - 05:24:56 7050
CPSLO 05:10:00 -35.8 Dark Up 28.8 293.9 Low 04:55:11 - 05:24:50 7021

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 07RH283, (2019/03/18 05:08UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 21.77  68
44Zet Per      03:54:07.9 +31:53:01  2.8  3.74  74
40 Per         03:42:22.6 +33:57:54  4.8  0.67  76
PPM 068723     03:43:24.0 +34:06:58  7.6  0.59  76
PPM 068691     03:41:23.1 +34:58:49  8.7  0.37  76
07RH283        03:42:01.0 +34:38:00 16.1        76
Positions are for J2000

Event circumstances last updated at 2018/06/11 22:50:18 UT

Marc W. Buie, Southwest Research Institute

RECON