RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1140:02650208 with event index number of 1655235

Geocentric closest approach at 2027/01/17 01:48:47 UTC

J2000 position of star is 07:00:10.0 +25:55:37
Equinox of date position of star is 07:01:40.4 +25:53:28
Stellar brightness G=12.1, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 61 degrees from the moon. Moon is 63% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 31.8 AU from the Sun and 30.8 AU from the Earth.
Apparent velocity is 24.0 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 396 seconds.
The 1-sigma cross-track error in the shadow position is 2071 km.
The sky-plane scale is 22362.2 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=204.2 km assuming a 5% albedo -- 8.5 sec chord
Diameter=83.4 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2027/01/17 01:49UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:58.3 +27:57:31  1.1 10.27  71
39 Gem         07:00:27.3 +26:02:34  6.5  0.35  61
PPM 096857     07:01:10.4 +26:00:18 11.3  0.19  61
15875          07:01:50.1 +25:53:14 12.1        62
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 2.3 sigma about the mid-time.
The median site spacing is 16.5 km RECON observability=0.1 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)
Kamloops	01:51:47	-13.0	AT	Up	25.2	79.1	Low	01:36:47 - 02:06:47	8208
Victoria	01:51:56	-10.4	NT	Up	22.8	76.1	Low	01:36:56 - 02:06:56	8138
Peachland	01:51:50	-13.1	AT	Up	25.4	79.1	Low	01:36:50 - 02:06:50	8119
Kelowna	01:51:49	-13.3	AT	Up	25.6	79.4	Low	01:36:49 - 02:06:49	8119
Summerland	01:51:51	-13.1	AT	Up	25.4	79.1	Low	01:36:51 - 02:06:51	8105
Penticton	01:51:51	-13.1	AT	Up	25.5	79.2	Low	01:36:51 - 02:06:51	8097
Oliver	01:51:51	-13.0	AT	Up	25.4	79.0	Low	01:36:51 - 02:06:51	8069
Anarchist Mountain Observatory	01:51:52	-13.1	AT	Up	25.5	79.1	Low	01:36:52 - 02:06:52	8050
Okanogan	01:51:54	-12.8	AT	Up	25.3	78.6	Low	01:36:54 - 02:06:54	8007
Brewster	01:51:55	-12.6	AT	Up	25.1	78.4	Low	01:36:55 - 02:06:55	7992
Manson/Chelan	01:51:57	-12.3	AT	Up	24.8	78.0	Low	01:36:57 - 02:06:57	7987
Wenatchee	01:51:58	-12.0	AT	Up	24.6	77.7	Low	01:36:58 - 02:06:58	7955
Ellensburg	01:51:59	-11.8	NT	Up	24.3	77.4	Low	01:36:59 - 02:06:59	7929
Sleaford	01:51:30	-22.0	Dark	Up	34.2	90.7	Up	01:36:30 - 02:06:30	7919
Yakima	01:52:00	-11.6	NT	Up	24.3	77.2	Low	01:37:00 - 02:07:00	7897
Toppenish/White Swan	01:52:01	-11.7	NT	Up	24.3	77.2	Low	01:37:01 - 02:07:01	7874
The Dalles	01:52:04	-10.9	NT	Up	23.6	76.4	Low	01:37:04 - 02:07:04	7838
Maupin	01:52:05	-10.9	NT	Up	23.6	76.3	Low	01:37:05 - 02:07:05	7801
PNWRO	01:52:01	-12.6	AT	Up	25.3	78.0	Low	01:37:01 - 02:07:01	7796
Sisters	01:52:08	-10.3	NT	Up	23.0	75.6	Low	01:37:08 - 02:07:08	7746
Bend	01:52:08	-10.4	NT	Up	23.2	75.7	Low	01:37:08 - 02:07:08	7718
Oregon Observatory	01:52:10	-10.2	NT	Up	23.0	75.5	Low	01:37:10 - 02:07:10	7708
Chiloquin	01:52:13	-9.5	NT	Up	22.4	74.7	Low	01:37:13 - 02:07:13	7613
Klamath Falls	01:52:14	-9.4	NT	Up	22.4	74.6	Low	01:37:14 - 02:07:14	7582
Fall River/Burney	01:52:17	-9.3	NT	Up	22.4	74.4	Low	01:37:17 - 02:07:17	7469
Cedarville	01:52:15	-10.4	NT	Up	23.4	75.3	Low	01:37:15 - 02:07:15	7467
Greenville	01:52:19	-9.4	NT	Up	22.4	74.3	Low	01:37:19 - 02:07:19	7376
Gimple	01:52:20	-9.4	NT	Up	22.5	74.4	Low	01:37:20 - 02:07:20	7372
Quincy	01:52:20	-9.3	NT	Up	22.4	74.2	Low	01:37:20 - 02:07:20	7358
Portola	01:52:20	-9.6	NT	Up	22.7	74.4	Low	01:37:20 - 02:07:20	7330
Reno	01:52:20	-10.0	NT	Up	23.1	74.7	Low	01:37:20 - 02:07:20	7284
Carson City	01:52:21	-9.9	NT	Up	23.0	74.6	Low	01:37:21 - 02:07:21	7252
Gardnerville	01:52:22	-9.8	NT	Up	23.0	74.5	Low	01:37:22 - 02:07:22	7229
Yerington	01:52:21	-10.3	NT	Up	23.5	74.8	Low	01:37:21 - 02:07:21	7212
Hawthorne	01:52:22	-10.5	NT	Up	23.8	74.9	Low	01:37:22 - 02:07:22	7151
Lee Vining	01:52:23	-10.0	NT	Up	23.2	74.4	Low	01:37:23 - 02:07:23	7119
Bishop	01:52:25	-10.4	NT	Up	23.6	74.6	Low	01:37:25 - 02:07:25	7039
Beatty	01:52:24	-11.5	NT	Up	24.8	75.2	Low	01:37:24 - 02:07:24	6937
Dunrhomin	01:52:02	-21.0	Dark	Up	34.2	83.3	Up	01:37:02 - 02:07:02	6853
Nikitin	01:52:03	-20.9	Dark	Up	34.2	83.2	Up	01:37:03 - 02:07:03	6836
CU-SBO	01:52:03	-20.9	Dark	Up	34.1	83.1	Up	01:37:03 - 02:07:03	6833
Wildwood	01:52:33	-9.2	NT	Up	22.6	73.1	Low	01:37:33 - 02:07:33	6749
Laughlin/Bullhead City	01:52:27	-12.6	AT	Up	26.1	75.5	Low	01:37:27 - 02:07:27	6698
Patrick	01:52:25	-13.3	AT	Up	26.7	75.9	Low	01:37:25 - 02:07:25	6695
Idyllwild	01:52:31	-10.5	NT	Up	24.0	73.8	Low	01:37:31 - 02:07:31	6645
Lake Havasu City	01:52:28	-12.7	AT	Up	26.1	75.3	Low	01:37:28 - 02:07:28	6626
Calipatria	01:52:32	-11.3	NT	Up	24.8	74.1	Low	01:37:32 - 02:07:32	6542
Yuma	01:52:33	-11.9	NT	Up	25.4	74.3	Low	01:37:33 - 02:07:33	6467
George/Scottsdale	01:52:27	-14.4	AT	Up	27.9	76.0	Low	01:37:27 - 02:07:27	6462

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 15875, (2027/01/17 01:49UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 10.27  71
39 Gem         06:58:47.1 +26:04:53  6.5  0.35  61
PPM 096857     06:59:30.2 +26:02:39 11.3  0.19  61
15875          07:00:10.0 +25:55:37 12.1        61
Positions are for J2000

Event circumstances last updated at 2024/06/09 02:50:21 UT

RECON