메타데이터
| 항목 |
값 |
| Designation |
C/2011 Q1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-06-29T10:55:01.718400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:54Z |
| Obs used |
59 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-09-21.0000000 |
| e |
0.99791265 |
| q (au) |
6.780085 |
| a (au) |
3248.185456 |
| i (deg) |
94.862014 |
| Ω (om, deg) |
142.243907 |
| ω (w, deg) |
135.926448 |
| M (ma, deg) |
0.000445 |
밝기
산란 + 전체 선형
$$
M_a = (2.217 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
2.217 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.968 |
| 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) |
| 2026-03-26 00:00 |
03:35:14.21 |
-74:59:55.1 |
HIP 16539 |
11.85 |
| 2026-03-26 12:00 |
03:35:25.97 |
-74:59:07.0 |
HIP 16539 |
12.95 |
| 2026-03-27 00:00 |
03:35:37.82 |
-74:58:19.2 |
HIP 16914 |
12.04 |
| 2026-03-27 12:00 |
03:35:49.75 |
-74:57:31.8 |
HIP 16914 |
10.93 |
| 2026-03-28 00:00 |
03:36:01.75 |
-74:56:44.6 |
HIP 16914 |
9.83 |
| 2026-03-28 12:00 |
03:36:13.84 |
-74:55:57.8 |
HIP 16914 |
8.72 |
| 2026-03-29 00:00 |
03:36:26.01 |
-74:55:11.3 |
HIP 16914 |
7.62 |
| 2026-03-29 12:00 |
03:36:38.26 |
-74:54:25.1 |
HIP 16914 |
6.52 |
| 2026-03-30 00:00 |
03:36:50.59 |
-74:53:39.3 |
HIP 16914 |
5.42 |
| 2026-03-30 12:00 |
03:37:02.99 |
-74:52:53.7 |
HIP 16914 |
4.33 |
| 2026-03-31 00:00 |
03:37:15.47 |
-74:52:08.5 |
HIP 16914 |
3.25 |
| 2026-03-31 12:00 |
03:37:28.02 |
-74:51:23.6 |
HIP 16914 |
2.21 |
| 2026-04-01 00:00 |
03:37:40.65 |
-74:50:39.1 |
HIP 16914 |
1.30 |
| 2026-04-01 12:00 |
03:37:53.35 |
-74:49:54.8 |
HIP 16914 |
0.98 |
| 2026-04-02 00:00 |
03:38:06.13 |
-74:49:11.0 |
HIP 16914 |
1.65 |
| 2026-04-02 12:00 |
03:38:18.98 |
-74:48:27.4 |
HIP 16914 |
2.64 |
| 2026-04-03 00:00 |
03:38:31.90 |
-74:47:44.2 |
HIP 16914 |
3.70 |
| 2026-04-03 12:00 |
03:38:44.89 |
-74:47:01.3 |
HIP 16914 |
4.79 |
| 2026-04-04 00:00 |
03:38:57.95 |
-74:46:18.8 |
HIP 16914 |
5.88 |
| 2026-04-04 12:00 |
03:39:11.08 |
-74:45:36.6 |
HIP 16914 |
6.99 |
| 2026-04-05 00:00 |
03:39:24.29 |
-74:44:54.8 |
HIP 16914 |
8.10 |
| 2026-04-05 12:00 |
03:39:37.56 |
-74:44:13.3 |
HIP 16914 |
9.21 |
| 2026-04-06 00:00 |
03:39:50.90 |
-74:43:32.1 |
HIP 16914 |
10.32 |
| 2026-04-06 12:00 |
03:40:04.30 |
-74:42:51.3 |
HIP 16914 |
11.43 |
| 2026-04-07 00:00 |
03:40:17.77 |
-74:42:10.9 |
HIP 16914 |
12.55 |
| 2026-04-07 12:00 |
03:40:31.31 |
-74:41:30.8 |
HIP 16914 |
13.66 |
| 2026-04-08 00:00 |
03:40:44.92 |
-74:40:51.1 |
HIP 16914 |
14.78 |
| 2026-04-08 12:00 |
03:40:58.58 |
-74:40:11.8 |
HIP 16914 |
15.89 |
| 2026-04-09 00:00 |
03:41:12.32 |
-74:39:32.8 |
HIP 16914 |
17.01 |
| 2026-04-09 12:00 |
03:41:26.11 |
-74:38:54.1 |
HIP 16914 |
18.13 |
| 2026-04-10 00:00 |
03:41:39.97 |
-74:38:15.9 |
HIP 16914 |
19.24 |
| 2026-04-10 12:00 |
03:41:53.89 |
-74:37:38.0 |
HIP 17628 |
20.13 |
| 2026-04-11 00:00 |
03:42:07.87 |
-74:37:00.4 |
HIP 17628 |
19.04 |
| 2026-04-11 12:00 |
03:42:21.91 |
-74:36:23.3 |
HIP 17628 |
17.96 |
| 2026-04-12 00:00 |
03:42:36.01 |
-74:35:46.5 |
HIP 17628 |
16.88 |
| 2026-04-12 12:00 |
03:42:50.17 |
-74:35:10.1 |
HIP 17628 |
15.80 |
| 2026-04-13 00:00 |
03:43:04.39 |
-74:34:34.0 |
HIP 17628 |
14.73 |
| 2026-04-13 12:00 |
03:43:18.66 |
-74:33:58.4 |
HIP 17628 |
13.66 |
| 2026-04-14 00:00 |
03:43:32.99 |
-74:33:23.1 |
HIP 17628 |
12.59 |
| 2026-04-14 12:00 |
03:43:47.38 |
-74:32:48.2 |
HIP 17628 |
11.53 |
| 2026-04-15 00:00 |
03:44:01.83 |
-74:32:13.7 |
HIP 17628 |
10.48 |
| 2026-04-15 12:00 |
03:44:16.33 |
-74:31:39.6 |
HIP 17628 |
9.45 |
| 2026-04-16 00:00 |
03:44:30.88 |
-74:31:05.9 |
HIP 17628 |
8.43 |