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) |
| 2026-03-26 00:00 |
08:11:43.27 |
-88:08:35.3 |
HIP 38078 |
21.45 |
| 2026-03-26 12:00 |
08:10:54.16 |
-88:07:52.6 |
HIP 37199 |
21.52 |
| 2026-03-27 00:00 |
08:10:06.52 |
-88:07:09.6 |
HIP 37199 |
20.79 |
| 2026-03-27 12:00 |
08:09:20.31 |
-88:06:26.4 |
HIP 37199 |
20.08 |
| 2026-03-28 00:00 |
08:08:35.52 |
-88:05:42.9 |
HIP 37199 |
19.37 |
| 2026-03-28 12:00 |
08:07:52.13 |
-88:04:59.0 |
HIP 37199 |
18.68 |
| 2026-03-29 00:00 |
08:07:10.12 |
-88:04:15.0 |
HIP 37199 |
18.01 |
| 2026-03-29 12:00 |
08:06:29.46 |
-88:03:30.6 |
HIP 37199 |
17.35 |
| 2026-03-30 00:00 |
08:05:50.15 |
-88:02:46.1 |
HIP 37199 |
16.71 |
| 2026-03-30 12:00 |
08:05:12.16 |
-88:02:01.3 |
HIP 37199 |
16.09 |
| 2026-03-31 00:00 |
08:04:35.47 |
-88:01:16.2 |
HIP 37199 |
15.50 |
| 2026-03-31 12:00 |
08:04:00.07 |
-88:00:31.0 |
HIP 37199 |
14.93 |
| 2026-04-01 00:00 |
08:03:25.92 |
-87:59:45.5 |
HIP 37199 |
14.39 |
| 2026-04-01 12:00 |
08:02:53.02 |
-87:58:59.8 |
HIP 37199 |
13.89 |
| 2026-04-02 00:00 |
08:02:21.35 |
-87:58:13.9 |
HIP 37199 |
13.42 |
| 2026-04-02 12:00 |
08:01:50.88 |
-87:57:27.8 |
HIP 37199 |
12.99 |
| 2026-04-03 00:00 |
08:01:21.60 |
-87:56:41.6 |
HIP 37199 |
12.61 |
| 2026-04-03 12:00 |
08:00:53.49 |
-87:55:55.1 |
HIP 37199 |
12.27 |
| 2026-04-04 00:00 |
08:00:26.53 |
-87:55:08.5 |
HIP 37199 |
11.99 |
| 2026-04-04 12:00 |
08:00:00.70 |
-87:54:21.7 |
HIP 37199 |
11.77 |
| 2026-04-05 00:00 |
07:59:35.99 |
-87:53:34.8 |
HIP 37199 |
11.61 |
| 2026-04-05 12:00 |
07:59:12.38 |
-87:52:47.7 |
HIP 37199 |
11.51 |
| 2026-04-06 00:00 |
07:58:49.85 |
-87:52:00.4 |
HIP 37199 |
11.47 |
| 2026-04-06 12:00 |
07:58:28.38 |
-87:51:13.0 |
HIP 37199 |
11.50 |
| 2026-04-07 00:00 |
07:58:07.96 |
-87:50:25.5 |
HIP 37199 |
11.60 |
| 2026-04-07 12:00 |
07:57:48.57 |
-87:49:37.8 |
HIP 37199 |
11.76 |
| 2026-04-08 00:00 |
07:57:30.19 |
-87:48:50.1 |
HIP 37199 |
11.98 |
| 2026-04-08 12:00 |
07:57:12.82 |
-87:48:02.2 |
HIP 37199 |
12.25 |
| 2026-04-09 00:00 |
07:56:56.42 |
-87:47:14.2 |
HIP 37199 |
12.58 |
| 2026-04-09 12:00 |
07:56:40.99 |
-87:46:26.0 |
HIP 37199 |
12.97 |
| 2026-04-10 00:00 |
07:56:26.51 |
-87:45:37.8 |
HIP 37199 |
13.39 |
| 2026-04-10 12:00 |
07:56:12.96 |
-87:44:49.5 |
HIP 37199 |
13.86 |
| 2026-04-11 00:00 |
07:56:00.34 |
-87:44:01.1 |
HIP 37199 |
14.36 |
| 2026-04-11 12:00 |
07:55:48.61 |
-87:43:12.6 |
HIP 40861 |
14.58 |
| 2026-04-12 00:00 |
07:55:37.78 |
-87:42:24.0 |
HIP 40861 |
14.78 |
| 2026-04-12 12:00 |
07:55:27.83 |
-87:41:35.4 |
HIP 40861 |
15.02 |
| 2026-04-13 00:00 |
07:55:18.74 |
-87:40:46.7 |
HIP 40861 |
15.28 |
| 2026-04-13 12:00 |
07:55:10.49 |
-87:39:57.9 |
HIP 40861 |
15.58 |
| 2026-04-14 00:00 |
07:55:03.08 |
-87:39:09.0 |
HIP 40861 |
15.91 |
| 2026-04-14 12:00 |
07:54:56.49 |
-87:38:20.1 |
HIP 40861 |
16.26 |
| 2026-04-15 00:00 |
07:54:50.71 |
-87:37:31.2 |
HIP 40861 |
16.65 |
| 2026-04-15 12:00 |
07:54:45.72 |
-87:36:42.1 |
HIP 40861 |
17.05 |
| 2026-04-16 00:00 |
07:54:41.51 |
-87:35:53.1 |
HIP 40861 |
17.48 |