메타데이터
| 항목 |
값 |
| Designation |
C/2011 M1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-09-07T13:44:21.122880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:52Z |
| Obs used |
109 |
| NEO |
- |
| M1 |
12.300 |
| K1 |
18.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-07-02.0000000 |
| e |
1.00267426 |
| q (au) |
0.895753 |
| a (au) |
-334.952908 |
| i (deg) |
70.183172 |
| Ω (om, deg) |
324.795673 |
| ω (w, deg) |
119.568947 |
| M (ma, deg) |
-0.010864 |
밝기
산란 + 전체 선형
$$
M_a = (13.255 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.255 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2011-06-22 |
2011-07-13 |
+34.0421 |
-6.777 |
| 2011-07-13 |
2011-09-07 |
+17.3304 |
-3.287 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
10:47:41.67 |
-85:30:51.8 |
HIP 51723 |
21.51 |
| 2026-09-20 12:00 |
10:48:21.49 |
-85:31:08.7 |
HIP 51723 |
22.30 |
| 2026-09-21 00:00 |
10:49:01.29 |
-85:31:26.0 |
HIP 51723 |
23.09 |
| 2026-09-21 12:00 |
10:49:41.05 |
-85:31:43.5 |
HIP 54279 |
23.02 |
| 2026-09-22 00:00 |
10:50:20.78 |
-85:32:01.3 |
HIP 54279 |
22.23 |
| 2026-09-22 12:00 |
10:51:00.48 |
-85:32:19.4 |
HIP 54279 |
21.43 |
| 2026-09-23 00:00 |
10:51:40.15 |
-85:32:37.8 |
HIP 54279 |
20.63 |
| 2026-09-23 12:00 |
10:52:19.78 |
-85:32:56.5 |
HIP 54279 |
19.84 |
| 2026-09-24 00:00 |
10:52:59.39 |
-85:33:15.5 |
HIP 54279 |
19.04 |
| 2026-09-24 12:00 |
10:53:38.95 |
-85:33:34.7 |
HIP 54279 |
18.25 |
| 2026-09-25 00:00 |
10:54:18.49 |
-85:33:54.3 |
HIP 54279 |
17.45 |
| 2026-09-25 12:00 |
10:54:57.99 |
-85:34:14.1 |
HIP 54279 |
16.66 |
| 2026-09-26 00:00 |
10:55:37.46 |
-85:34:34.2 |
HIP 54279 |
15.87 |
| 2026-09-26 12:00 |
10:56:16.89 |
-85:34:54.6 |
HIP 54279 |
15.08 |
| 2026-09-27 00:00 |
10:56:56.28 |
-85:35:15.3 |
HIP 54279 |
14.29 |
| 2026-09-27 12:00 |
10:57:35.65 |
-85:35:36.2 |
HIP 54279 |
13.51 |
| 2026-09-28 00:00 |
10:58:14.97 |
-85:35:57.5 |
HIP 54279 |
12.72 |
| 2026-09-28 12:00 |
10:58:54.26 |
-85:36:19.0 |
HIP 54279 |
11.94 |
| 2026-09-29 00:00 |
10:59:33.52 |
-85:36:40.8 |
HIP 54279 |
11.17 |
| 2026-09-29 12:00 |
11:00:12.73 |
-85:37:02.9 |
HIP 54279 |
10.40 |
| 2026-09-30 00:00 |
11:00:51.91 |
-85:37:25.3 |
HIP 54279 |
9.64 |
| 2026-09-30 12:00 |
11:01:31.06 |
-85:37:48.0 |
HIP 54279 |
8.89 |
| 2026-10-01 00:00 |
11:02:10.16 |
-85:38:10.9 |
HIP 54279 |
8.15 |
| 2026-10-01 12:00 |
11:02:49.23 |
-85:38:34.1 |
HIP 54279 |
7.43 |
| 2026-10-02 00:00 |
11:03:28.26 |
-85:38:57.7 |
HIP 54279 |
6.73 |
| 2026-10-02 12:00 |
11:04:07.25 |
-85:39:21.4 |
HIP 54279 |
6.05 |
| 2026-10-03 00:00 |
11:04:46.19 |
-85:39:45.5 |
HIP 54279 |
5.42 |
| 2026-10-03 12:00 |
11:05:25.10 |
-85:40:09.8 |
HIP 54279 |
4.85 |
| 2026-10-04 00:00 |
11:06:03.97 |
-85:40:34.5 |
HIP 54279 |
4.36 |
| 2026-10-04 12:00 |
11:06:42.79 |
-85:40:59.4 |
HIP 54279 |
3.98 |
| 2026-10-05 00:00 |
11:07:21.57 |
-85:41:24.6 |
HIP 54279 |
3.75 |
| 2026-10-05 12:00 |
11:08:00.31 |
-85:41:50.0 |
HIP 54279 |
3.68 |
| 2026-10-06 00:00 |
11:08:39.00 |
-85:42:15.8 |
HIP 54279 |
3.81 |
| 2026-10-06 12:00 |
11:09:17.65 |
-85:42:41.8 |
HIP 54279 |
4.09 |
| 2026-10-07 00:00 |
11:09:56.25 |
-85:43:08.1 |
HIP 54279 |
4.52 |
| 2026-10-07 12:00 |
11:10:34.81 |
-85:43:34.6 |
HIP 54279 |
5.04 |
| 2026-10-08 00:00 |
11:11:13.32 |
-85:44:01.5 |
HIP 54279 |
5.64 |
| 2026-10-08 12:00 |
11:11:51.77 |
-85:44:28.6 |
HIP 54279 |
6.29 |
| 2026-10-09 00:00 |
11:12:30.18 |
-85:44:56.0 |
HIP 54279 |
6.98 |
| 2026-10-09 12:00 |
11:13:08.54 |
-85:45:23.7 |
HIP 54279 |
7.70 |
| 2026-10-10 00:00 |
11:13:46.85 |
-85:45:51.6 |
HIP 54279 |
8.44 |
| 2026-10-10 12:00 |
11:14:25.10 |
-85:46:19.8 |
HIP 54279 |
9.19 |
| 2026-10-11 00:00 |
11:15:03.30 |
-85:46:48.3 |
HIP 54279 |
9.96 |