RECON: TNO occultation with 84719

Event between (84719) 02VR128 and star GA1160:00505199 with event index number of 166798

Geocentric closest approach at 2018/11/30 07:39:03 UTC

J2000 position of star is 03:33:26.4 +27:45:44
Equinox of date position of star is 03:34:33.5 +27:49:24
Stellar brightness G=15.9, use SENSEUP=128
Star is 104 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 39.8 AU from the Sun and 38.9 AU from the Earth.
The TNO is moving 25.3 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is 2222 km.
The sky-plane scale is 28180.1 km/arcsec.

The TNO has an absolute magnitude Hv=4.9
Diameter=631.0 km assuming a 5% albedo -- 25.0 sec chord
Diameter=257.6 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 84719, (2018/11/30 07:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.5 +16:32:45  0.8 18.30  93
44Zet Per      03:55:19.5 +31:56:18  2.8  6.09  98
11 Tau         03:41:54.3 +25:23:22  6.1  2.93 103
PPM 092643     03:36:35.2 +27:54:29  8.5  0.45 103
PPM 092586     03:33:05.6 +27:55:17  9.5  0.34 104
84719          03:34:35.3 +27:49:29 15.9       103
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 25.8 km RECON observability=1.0 and success probability=10.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 07:38:12 -62.1 Dark Up 66.7 204.7 Up 07:26:38 - 07:49:45 5017
Oroville 07:38:12 -62.7 Dark Up 67.2 205.6 Up 07:26:38 - 07:49:45 4953
Tonasket 07:38:12 -62.9 Dark Up 67.4 205.8 Up 07:26:38 - 07:49:45 4929
Okanogan 07:38:13 -63.2 Dark Up 67.8 205.9 Up 07:26:39 - 07:49:46 4896
Brewster 07:38:13 -63.5 Dark Up 68.1 205.7 Up 07:26:40 - 07:49:47 4870
Manson/Chelan 07:38:14 -63.7 Dark Up 68.4 205.1 Up 07:26:41 - 07:49:48 4852
Entiat 07:38:14 -63.9 Dark Up 68.6 205.2 Up 07:26:41 - 07:49:48 4830
Wenatchee 07:38:15 -64.1 Dark Up 68.9 205.2 Up 07:26:41 - 07:49:48 4804
Ellensburg 07:38:16 -64.5 Dark Down 69.3 205.2 Up 07:26:43 - 07:49:50 4764
Yakima 07:38:16 -64.9 Dark Down 69.7 205.6 Up 07:26:42 - 07:49:49 4721
Toppenish/White Swan 07:38:15 -65.2 Dark Down 69.8 206.3 Up 07:26:42 - 07:49:49 4697
Pasco 07:38:12 -65.4 Dark Up 69.5 209.4 Up 07:26:38 - 07:49:45 4669
Goldendale 07:38:17 -65.7 Dark Down 70.4 205.9 Up 07:26:43 - 07:49:50 4643
PNWRO 07:38:11 -65.6 Dark Up 69.6 210.3 Up 07:26:38 - 07:49:45 4641
George/Umatilla 07:38:12 -65.7 Dark Up 69.9 209.3 Up 07:26:39 - 07:49:46 4636
The Dalles 07:38:18 -65.9 Dark Down 70.7 205.3 Up 07:26:45 - 07:49:52 4624
Maupin 07:38:18 -66.3 Dark Down 71.1 206.1 Up 07:26:44 - 07:49:51 4579
Madras/Culver 07:38:18 -66.8 Dark Down 71.6 206.7 Up 07:26:45 - 07:49:52 4522
Sisters 07:38:20 -67.1 Dark Down 72.0 206.0 Up 07:26:46 - 07:49:53 4492
Redmond 07:38:19 -67.2 Dark Down 71.9 207.1 Up 07:26:45 - 07:49:52 4484
Bend 07:38:20 -67.4 Dark Down 72.2 207.0 Up 07:26:46 - 07:49:53 4463
Oregon Observatory 07:38:20 -67.5 Dark Down 72.4 206.9 Up 07:26:46 - 07:49:53 4447
La Pine/Gilchrist 07:38:20 -67.7 Dark Down 72.6 207.0 Up 07:26:47 - 07:49:54 4426
North Lake 07:38:19 -68.2 Dark Down 72.7 209.3 Up 07:26:45 - 07:49:52 4372
Chiloquin 07:38:22 -68.8 Dark Down 73.7 207.7 Up 07:26:48 - 07:49:55 4312
Paisley 07:38:17 -68.8 Dark Down 73.1 211.2 Up 07:26:44 - 07:49:51 4308
Klamath Falls 07:38:22 -69.1 Dark Down 73.9 208.5 Up 07:26:48 - 07:49:55 4274
Lakeview 07:38:17 -69.3 Dark Down 73.4 212.6 Up 07:26:43 - 07:49:50 4251
Tulelake 07:38:21 -69.4 Dark Down 74.1 209.8 Up 07:26:47 - 07:49:54 4241
Cedarville 07:38:17 -70.0 Dark Down 73.9 214.3 Up 07:26:43 - 07:49:50 4179
Fall River/Burney 07:38:21 -70.3 Dark Down 74.8 211.8 Up 07:26:47 - 07:49:54 4143
Susanville 07:38:20 -71.0 Dark Down 75.0 215.3 Up 07:26:46 - 07:49:53 4065
Greenville 07:38:20 -71.3 Dark Down 75.4 215.0 Up 07:26:46 - 07:49:53 4039
Gimple 07:38:20 -71.3 Dark Down 75.4 215.2 Up 07:26:46 - 07:49:53 4038
Quincy 07:38:20 -71.5 Dark Down 75.6 215.4 Up 07:26:47 - 07:49:54 4018
Portola 07:38:19 -71.7 Dark Down 75.4 217.2 Up 07:26:45 - 07:49:52 3998
Reno 07:38:16 -72.0 Dark Down 75.3 219.7 Up 07:26:43 - 07:49:50 3960
Carson City 07:38:17 -72.3 Dark Down 75.6 220.7 Up 07:26:43 - 07:49:50 3921
Niwot 07:37:29 -68.9 Dark Up 66.0 246.8 Up 07:25:56 - 07:49:03 3914
Gardnerville 07:38:17 -72.6 Dark Down 75.8 221.4 Up 07:26:43 - 07:49:50 3894
Yerington 07:38:15 -72.6 Dark Down 75.4 223.0 Up 07:26:42 - 07:49:49 3892
Hawthorne 07:38:13 -73.1 Dark Down 75.5 225.7 Up 07:26:40 - 07:49:47 3835
Lee Vining 07:38:15 -73.6 Dark Down 76.1 225.9 Up 07:26:42 - 07:49:49 3780
Tonopah 07:38:09 -73.6 Dark Down 75.0 230.6 Up 07:26:36 - 07:49:43 3768
Bishop 07:38:13 -74.3 Dark Down 76.1 229.7 Up 07:26:39 - 07:49:46 3706
Beatty 07:38:08 -74.7 Dark Up 75.4 235.2 Up 07:26:34 - 07:49:41 3637
Lone Pine 07:38:13 -75.0 Dark Down 76.4 233.0 Up 07:26:39 - 07:49:46 3619
Indian Springs 07:38:05 -75.0 Dark Up 74.8 238.6 Up 07:26:31 - 07:49:38 3589
Henderson 07:38:02 -75.5 Dark Up 74.6 241.7 Up 07:26:28 - 07:49:35 3524
CPSLO 07:38:22 -76.1 Dark Down 78.8 230.3 Up 07:26:48 - 07:49:55 3511
Searchlight/Boulder City 07:38:02 -76.0 Dark Up 74.8 243.7 Up 07:26:28 - 07:49:35 3460
Patrick 07:37:58 -75.9 Dark Up 74.1 245.8 Up 07:26:25 - 07:49:32 3445
Laughlin/Bullhead City 07:38:01 -76.3 Dark Up 74.7 245.4 Up 07:26:28 - 07:49:35 3424
Kingman/Dolan Springs 07:37:59 -76.1 Dark Up 74.3 246.2 Up 07:26:25 - 07:49:32 3422
DCO 07:37:56 -76.0 Dark Up 73.7 248.0 Up 07:26:23 - 07:49:30 3405
Mohave Valley 07:38:01 -76.5 Dark Up 74.8 246.3 Up 07:26:28 - 07:49:35 3394
Wildwood 07:38:16 -77.5 Dark Down 78.1 241.0 Up 07:26:42 - 07:49:49 3351
Lake Havasu City 07:38:00 -76.9 Dark Up 74.8 248.1 Up 07:26:27 - 07:49:34 3348
Parker 07:38:00 -77.2 Dark Up 74.9 249.3 Up 07:26:27 - 07:49:34 3309
Idyllwild 07:38:09 -77.9 Dark Down 76.9 246.5 Up 07:26:36 - 07:49:43 3289
Blythe 07:38:02 -77.8 Dark Up 75.3 250.7 Up 07:26:28 - 07:49:35 3254
Calipatria 07:38:05 -78.4 Dark Up 76.2 251.0 Up 07:26:32 - 07:49:39 3209
Yuma 07:38:02 -78.7 Dark Up 75.6 254.1 Up 07:26:28 - 07:49:35 3152

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 84719, (2018/11/30 07:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 18.30  93
44Zet Per      03:54:07.9 +31:53:01  2.8  6.09  98
11 Tau         03:40:46.3 +25:19:46  6.1  2.93 103
PPM 092643     03:35:26.2 +27:50:47  8.5  0.45 103
PPM 092586     03:31:56.7 +27:51:30  9.5  0.34 104
84719          03:33:26.4 +27:45:44 15.9       104
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:36:50 UT

Marc W. Buie, Southwest Research Institute

RECON