메타데이터
| 항목 |
값 |
| Designation |
P/2011 C2 (Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2012-01-07T21:49:24.366720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:48Z |
| Obs used |
184 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
12.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-10-11.0000000 |
| e |
0.26847186 |
| q (au) |
5.388548 |
| a (au) |
7.366152 |
| i (deg) |
10.910944 |
| Ω (om, deg) |
12.201981 |
| ω (w, deg) |
160.563612 |
| M (ma, deg) |
355.616810 |
밝기
산란 + 전체 선형
$$
M_a = (8.134 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.134 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.705 |
| k |
0.800 |
| δ90 |
9.974 |
| 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) |
| 2026-07-29 00:00 |
03:11:46.20 |
+23:53:10.9 |
HIP 14847 |
6.06 |
| 2026-07-29 12:00 |
03:11:54.39 |
+23:54:13.4 |
HIP 14847 |
5.50 |
| 2026-07-30 00:00 |
03:12:02.49 |
+23:55:15.6 |
HIP 14847 |
5.73 |
| 2026-07-30 12:00 |
03:12:10.49 |
+23:56:17.5 |
HIP 14847 |
6.65 |
| 2026-07-31 00:00 |
03:12:18.38 |
+23:57:19.1 |
HIP 14847 |
8.00 |
| 2026-07-31 12:00 |
03:12:26.17 |
+23:58:20.4 |
HIP 14847 |
9.59 |
| 2026-08-01 00:00 |
03:12:33.86 |
+23:59:21.4 |
HIP 14847 |
11.31 |
| 2026-08-01 12:00 |
03:12:41.45 |
+24:00:22.0 |
HIP 14847 |
13.09 |
| 2026-08-02 00:00 |
03:12:48.93 |
+24:01:22.4 |
HIP 14847 |
14.90 |
| 2026-08-02 12:00 |
03:12:56.31 |
+24:02:22.4 |
HIP 14847 |
16.73 |
| 2026-08-03 00:00 |
03:13:03.58 |
+24:03:22.1 |
HIP 15057 |
18.20 |
| 2026-08-03 12:00 |
03:13:10.75 |
+24:04:21.5 |
HIP 15057 |
16.34 |
| 2026-08-04 00:00 |
03:13:17.81 |
+24:05:20.6 |
HIP 15057 |
14.51 |
| 2026-08-04 12:00 |
03:13:24.76 |
+24:06:19.3 |
HIP 15057 |
12.72 |
| 2026-08-05 00:00 |
03:13:31.61 |
+24:07:17.7 |
HIP 15057 |
10.98 |
| 2026-08-05 12:00 |
03:13:38.35 |
+24:08:15.8 |
HIP 15057 |
9.28 |
| 2026-08-06 00:00 |
03:13:44.98 |
+24:09:13.5 |
HIP 15057 |
7.67 |
| 2026-08-06 12:00 |
03:13:51.50 |
+24:10:10.9 |
HIP 15057 |
6.16 |
| 2026-08-07 00:00 |
03:13:57.91 |
+24:11:08.0 |
HIP 15057 |
4.85 |
| 2026-08-07 12:00 |
03:14:04.21 |
+24:12:04.7 |
HIP 15057 |
3.89 |
| 2026-08-08 00:00 |
03:14:10.40 |
+24:13:01.1 |
HIP 15057 |
3.55 |
| 2026-08-08 12:00 |
03:14:16.48 |
+24:13:57.2 |
HIP 15057 |
3.96 |
| 2026-08-09 00:00 |
03:14:22.44 |
+24:14:52.9 |
HIP 15057 |
4.91 |
| 2026-08-09 12:00 |
03:14:28.29 |
+24:15:48.2 |
HIP 15057 |
6.13 |
| 2026-08-10 00:00 |
03:14:34.03 |
+24:16:43.2 |
HIP 15057 |
7.48 |
| 2026-08-10 12:00 |
03:14:39.66 |
+24:17:37.9 |
HIP 15057 |
8.89 |
| 2026-08-11 00:00 |
03:14:45.17 |
+24:18:32.2 |
HIP 15057 |
10.31 |
| 2026-08-11 12:00 |
03:14:50.56 |
+24:19:26.1 |
HIP 15057 |
11.74 |
| 2026-08-12 00:00 |
03:14:55.84 |
+24:20:19.6 |
HIP 15057 |
13.17 |
| 2026-08-12 12:00 |
03:15:01.00 |
+24:21:12.8 |
HIP 15181 |
14.43 |
| 2026-08-13 00:00 |
03:15:06.05 |
+24:22:05.7 |
HIP 15181 |
13.04 |
| 2026-08-13 12:00 |
03:15:10.97 |
+24:22:58.1 |
HIP 15181 |
11.68 |
| 2026-08-14 00:00 |
03:15:15.78 |
+24:23:50.2 |
HIP 15181 |
10.35 |
| 2026-08-14 12:00 |
03:15:20.48 |
+24:24:42.0 |
HIP 15181 |
9.07 |
| 2026-08-15 00:00 |
03:15:25.05 |
+24:25:33.3 |
HIP 15181 |
7.83 |
| 2026-08-15 12:00 |
03:15:29.50 |
+24:26:24.3 |
HIP 15181 |
6.65 |
| 2026-08-16 00:00 |
03:15:33.84 |
+24:27:14.9 |
HIP 15181 |
5.54 |
| 2026-08-16 12:00 |
03:15:38.05 |
+24:28:05.1 |
HIP 15181 |
4.55 |
| 2026-08-17 00:00 |
03:15:42.15 |
+24:28:54.9 |
HIP 15181 |
3.74 |
| 2026-08-17 12:00 |
03:15:46.12 |
+24:29:44.3 |
HIP 15181 |
3.21 |
| 2026-08-18 00:00 |
03:15:49.98 |
+24:30:33.4 |
HIP 15181 |
3.08 |
| 2026-08-18 12:00 |
03:15:53.71 |
+24:31:22.0 |
HIP 15181 |
3.38 |
| 2026-08-19 00:00 |
03:15:57.32 |
+24:32:10.3 |
HIP 15181 |
3.99 |