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) |
| 2026-05-12 00:00 |
14:49:03.27 |
-32:49:16.6 |
HIP 72439 |
4.02 |
| 2026-05-12 12:00 |
14:48:53.55 |
-32:48:48.7 |
HIP 72439 |
2.08 |
| 2026-05-13 00:00 |
14:48:43.84 |
-32:48:20.4 |
HIP 72439 |
1.13 |
| 2026-05-13 12:00 |
14:48:34.15 |
-32:47:51.8 |
HIP 72439 |
2.64 |
| 2026-05-14 00:00 |
14:48:24.46 |
-32:47:22.9 |
HIP 72439 |
4.63 |
| 2026-05-14 12:00 |
14:48:14.79 |
-32:46:53.6 |
HIP 72439 |
6.67 |
| 2026-05-15 00:00 |
14:48:05.14 |
-32:46:23.9 |
HIP 72439 |
8.74 |
| 2026-05-15 12:00 |
14:47:55.50 |
-32:45:53.9 |
HIP 72439 |
10.81 |
| 2026-05-16 00:00 |
14:47:45.88 |
-32:45:23.7 |
HIP 72439 |
12.89 |
| 2026-05-16 12:00 |
14:47:36.27 |
-32:44:53.0 |
HIP 72439 |
14.96 |
| 2026-05-17 00:00 |
14:47:26.69 |
-32:44:22.1 |
HIP 72439 |
17.04 |
| 2026-05-17 12:00 |
14:47:17.12 |
-32:43:50.9 |
HIP 72279 |
18.83 |
| 2026-05-18 00:00 |
14:47:07.58 |
-32:43:19.3 |
HIP 72279 |
18.89 |
| 2026-05-18 12:00 |
14:46:58.06 |
-32:42:47.4 |
HIP 72276 |
18.21 |
| 2026-05-19 00:00 |
14:46:48.56 |
-32:42:15.3 |
HIP 72276 |
17.59 |
| 2026-05-19 12:00 |
14:46:39.08 |
-32:41:42.8 |
HIP 72149 |
16.83 |
| 2026-05-20 00:00 |
14:46:29.63 |
-32:41:10.1 |
HIP 72149 |
15.30 |
| 2026-05-20 12:00 |
14:46:20.21 |
-32:40:37.1 |
HIP 72149 |
13.91 |
| 2026-05-21 00:00 |
14:46:10.81 |
-32:40:03.8 |
HIP 72149 |
12.72 |
| 2026-05-21 12:00 |
14:46:01.44 |
-32:39:30.2 |
HIP 72149 |
11.76 |
| 2026-05-22 00:00 |
14:45:52.10 |
-32:38:56.3 |
HIP 72149 |
11.12 |
| 2026-05-22 12:00 |
14:45:42.79 |
-32:38:22.2 |
HIP 72149 |
10.83 |
| 2026-05-23 00:00 |
14:45:33.51 |
-32:37:47.8 |
HIP 72149 |
10.93 |
| 2026-05-23 12:00 |
14:45:24.26 |
-32:37:13.2 |
HIP 72149 |
11.40 |
| 2026-05-24 00:00 |
14:45:15.04 |
-32:36:38.3 |
HIP 72149 |
12.20 |
| 2026-05-24 12:00 |
14:45:05.85 |
-32:36:03.2 |
HIP 72149 |
13.27 |
| 2026-05-25 00:00 |
14:44:56.70 |
-32:35:27.8 |
HIP 72149 |
14.53 |
| 2026-05-25 12:00 |
14:44:47.59 |
-32:34:52.2 |
HIP 72149 |
15.96 |
| 2026-05-26 00:00 |
14:44:38.50 |
-32:34:16.4 |
HIP 72149 |
17.49 |
| 2026-05-26 12:00 |
14:44:29.46 |
-32:33:40.3 |
HIP 72149 |
19.11 |
| 2026-05-27 00:00 |
14:44:20.45 |
-32:33:04.0 |
HIP 72149 |
20.80 |
| 2026-05-27 12:00 |
14:44:11.48 |
-32:32:27.5 |
HIP 72149 |
22.53 |
| 2026-05-28 00:00 |
14:44:02.55 |
-32:31:50.8 |
HIP 71922 |
21.61 |
| 2026-05-28 12:00 |
14:43:53.65 |
-32:31:13.9 |
HIP 71922 |
20.43 |
| 2026-05-29 00:00 |
14:43:44.80 |
-32:30:36.7 |
HIP 71922 |
19.39 |
| 2026-05-29 12:00 |
14:43:35.99 |
-32:29:59.4 |
HIP 71922 |
18.50 |
| 2026-05-30 00:00 |
14:43:27.22 |
-32:29:21.9 |
HIP 71922 |
17.80 |
| 2026-05-30 12:00 |
14:43:18.49 |
-32:28:44.2 |
HIP 71922 |
17.29 |
| 2026-05-31 00:00 |
14:43:09.80 |
-32:28:06.3 |
HIP 71922 |
17.00 |
| 2026-05-31 12:00 |
14:43:01.16 |
-32:27:28.2 |
HIP 71922 |
16.93 |
| 2026-06-01 00:00 |
14:42:52.57 |
-32:26:49.9 |
HIP 71922 |
17.09 |
| 2026-06-01 12:00 |
14:42:44.01 |
-32:26:11.5 |
HIP 71922 |
17.46 |
| 2026-06-02 00:00 |
14:42:35.51 |
-32:25:32.9 |
HIP 71922 |
18.03 |