메타데이터
| 항목 |
값 |
| Designation |
P/2010 JC81 (WISE) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-04-26T13:17:31.525440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
619 |
| NEO |
- |
| M1 |
10.300 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-12-13.0000000 |
| e |
0.77735065 |
| q (au) |
1.810829 |
| a (au) |
8.133096 |
| i (deg) |
38.690269 |
| Ω (om, deg) |
30.768052 |
| ω (w, deg) |
12.573308 |
| M (ma, deg) |
9.792412 |
밝기
산란 + 전체 선형
$$
M_a = (5.695 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.695 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| k |
1.000 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
14:40:39.04 |
-31:06:12.0 |
HIP 71853 |
18.54 |
| 2026-09-20 12:00 |
14:40:46.46 |
-31:06:28.3 |
HIP 71853 |
17.40 |
| 2026-09-21 00:00 |
14:40:53.93 |
-31:06:45.0 |
HIP 71853 |
16.33 |
| 2026-09-21 12:00 |
14:41:01.45 |
-31:07:02.1 |
HIP 71853 |
15.36 |
| 2026-09-22 00:00 |
14:41:09.02 |
-31:07:19.5 |
HIP 71853 |
14.51 |
| 2026-09-22 12:00 |
14:41:16.64 |
-31:07:37.4 |
HIP 71853 |
13.80 |
| 2026-09-23 00:00 |
14:41:24.32 |
-31:07:55.7 |
HIP 71853 |
13.26 |
| 2026-09-23 12:00 |
14:41:32.04 |
-31:08:14.3 |
HIP 71853 |
12.92 |
| 2026-09-24 00:00 |
14:41:39.81 |
-31:08:33.3 |
HIP 71853 |
12.80 |
| 2026-09-24 12:00 |
14:41:47.64 |
-31:08:52.7 |
HIP 71853 |
12.91 |
| 2026-09-25 00:00 |
14:41:55.51 |
-31:09:12.5 |
HIP 71853 |
13.25 |
| 2026-09-25 12:00 |
14:42:03.42 |
-31:09:32.7 |
HIP 71853 |
13.81 |
| 2026-09-26 00:00 |
14:42:11.39 |
-31:09:53.2 |
HIP 71853 |
14.55 |
| 2026-09-26 12:00 |
14:42:19.40 |
-31:10:14.1 |
HIP 71853 |
15.47 |
| 2026-09-27 00:00 |
14:42:27.47 |
-31:10:35.4 |
HIP 71853 |
16.54 |
| 2026-09-27 12:00 |
14:42:35.57 |
-31:10:57.1 |
HIP 71853 |
17.72 |
| 2026-09-28 00:00 |
14:42:43.73 |
-31:11:19.2 |
HIP 71853 |
19.01 |
| 2026-09-28 12:00 |
14:42:51.93 |
-31:11:41.6 |
HIP 71853 |
20.38 |
| 2026-09-29 00:00 |
14:43:00.17 |
-31:12:04.4 |
HIP 71853 |
21.83 |
| 2026-09-29 12:00 |
14:43:08.46 |
-31:12:27.6 |
HIP 71853 |
23.34 |
| 2026-09-30 00:00 |
14:43:16.80 |
-31:12:51.1 |
HIP 72037 |
23.07 |
| 2026-09-30 12:00 |
14:43:25.17 |
-31:13:15.0 |
HIP 72037 |
22.63 |
| 2026-10-01 00:00 |
14:43:33.60 |
-31:13:39.3 |
HIP 72037 |
22.33 |
| 2026-10-01 12:00 |
14:43:42.06 |
-31:14:03.9 |
HIP 72037 |
22.19 |
| 2026-10-02 00:00 |
14:43:50.57 |
-31:14:28.9 |
HIP 72037 |
22.21 |
| 2026-10-02 12:00 |
14:43:59.12 |
-31:14:54.3 |
HIP 72037 |
22.39 |
| 2026-10-03 00:00 |
14:44:07.72 |
-31:15:20.1 |
HIP 72037 |
22.73 |
| 2026-10-03 12:00 |
14:44:16.35 |
-31:15:46.2 |
HIP 72037 |
23.23 |
| 2026-10-04 00:00 |
14:44:25.03 |
-31:16:12.7 |
HIP 72037 |
23.87 |
| 2026-10-04 12:00 |
14:44:33.75 |
-31:16:39.5 |
HIP 72037 |
24.66 |
| 2026-10-05 00:00 |
14:44:42.50 |
-31:17:06.7 |
HIP 72037 |
25.57 |
| 2026-10-05 12:00 |
14:44:51.30 |
-31:17:34.2 |
HIP 72216 |
25.74 |
| 2026-10-06 00:00 |
14:45:00.14 |
-31:18:02.2 |
HIP 72216 |
24.90 |
| 2026-10-06 12:00 |
14:45:09.02 |
-31:18:30.4 |
HIP 72216 |
24.19 |
| 2026-10-07 00:00 |
14:45:17.93 |
-31:18:59.0 |
HIP 72216 |
23.63 |
| 2026-10-07 12:00 |
14:45:26.88 |
-31:19:28.0 |
HIP 72216 |
23.22 |
| 2026-10-08 00:00 |
14:45:35.88 |
-31:19:57.4 |
HIP 72216 |
22.98 |
| 2026-10-08 12:00 |
14:45:44.90 |
-31:20:27.1 |
HIP 72245 |
22.40 |
| 2026-10-09 00:00 |
14:45:53.97 |
-31:20:57.1 |
HIP 72245 |
21.22 |
| 2026-10-09 12:00 |
14:46:03.07 |
-31:21:27.5 |
HIP 72245 |
20.15 |
| 2026-10-10 00:00 |
14:46:12.21 |
-31:21:58.2 |
HIP 72245 |
19.24 |
| 2026-10-10 12:00 |
14:46:21.38 |
-31:22:29.3 |
HIP 72245 |
18.48 |
| 2026-10-11 00:00 |
14:46:30.58 |
-31:23:00.7 |
HIP 72245 |
17.93 |