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) |
| 2026-07-29 00:00 |
09:35:56.68 |
-85:28:53.3 |
HIP 46892 |
31.85 |
| 2026-07-29 12:00 |
09:36:37.27 |
-85:28:39.1 |
HIP 46892 |
32.16 |
| 2026-07-30 00:00 |
09:37:17.87 |
-85:28:25.3 |
HIP 46892 |
32.49 |
| 2026-07-30 12:00 |
09:37:58.48 |
-85:28:11.7 |
HIP 46892 |
32.82 |
| 2026-07-31 00:00 |
09:38:39.11 |
-85:27:58.3 |
HIP 46892 |
33.17 |
| 2026-07-31 12:00 |
09:39:19.76 |
-85:27:45.3 |
HIP 46892 |
33.52 |
| 2026-08-01 00:00 |
09:40:00.42 |
-85:27:32.6 |
HIP 46892 |
33.89 |
| 2026-08-01 12:00 |
09:40:41.09 |
-85:27:20.1 |
HIP 46892 |
34.27 |
| 2026-08-02 00:00 |
09:41:21.78 |
-85:27:07.9 |
HIP 46892 |
34.65 |
| 2026-08-02 12:00 |
09:42:02.48 |
-85:26:56.0 |
HIP 46892 |
35.05 |
| 2026-08-03 00:00 |
09:42:43.20 |
-85:26:44.3 |
HIP 46892 |
35.45 |
| 2026-08-03 12:00 |
09:43:23.93 |
-85:26:33.0 |
HIP 120071 |
35.60 |
| 2026-08-04 00:00 |
09:44:04.67 |
-85:26:21.9 |
HIP 120071 |
34.81 |
| 2026-08-04 12:00 |
09:44:45.42 |
-85:26:11.1 |
HIP 120071 |
34.02 |
| 2026-08-05 00:00 |
09:45:26.18 |
-85:26:00.6 |
HIP 120071 |
33.24 |
| 2026-08-05 12:00 |
09:46:06.96 |
-85:25:50.4 |
HIP 120071 |
32.46 |
| 2026-08-06 00:00 |
09:46:47.74 |
-85:25:40.4 |
HIP 120071 |
31.68 |
| 2026-08-06 12:00 |
09:47:28.54 |
-85:25:30.8 |
HIP 120071 |
30.92 |
| 2026-08-07 00:00 |
09:48:09.35 |
-85:25:21.4 |
HIP 120071 |
30.16 |
| 2026-08-07 12:00 |
09:48:50.16 |
-85:25:12.3 |
HIP 120071 |
29.40 |
| 2026-08-08 00:00 |
09:49:30.99 |
-85:25:03.5 |
HIP 120071 |
28.65 |
| 2026-08-08 12:00 |
09:50:11.82 |
-85:24:55.0 |
HIP 120071 |
27.92 |
| 2026-08-09 00:00 |
09:50:52.67 |
-85:24:46.8 |
HIP 120071 |
27.19 |
| 2026-08-09 12:00 |
09:51:33.52 |
-85:24:38.9 |
HIP 120071 |
26.47 |
| 2026-08-10 00:00 |
09:52:14.37 |
-85:24:31.3 |
HIP 120071 |
25.76 |
| 2026-08-10 12:00 |
09:52:55.24 |
-85:24:23.9 |
HIP 120071 |
25.06 |
| 2026-08-11 00:00 |
09:53:36.10 |
-85:24:16.9 |
HIP 120071 |
24.37 |
| 2026-08-11 12:00 |
09:54:16.98 |
-85:24:10.1 |
HIP 120071 |
23.70 |
| 2026-08-12 00:00 |
09:54:57.85 |
-85:24:03.6 |
HIP 120071 |
23.04 |
| 2026-08-12 12:00 |
09:55:38.73 |
-85:23:57.5 |
HIP 120071 |
22.40 |
| 2026-08-13 00:00 |
09:56:19.62 |
-85:23:51.6 |
HIP 120071 |
21.78 |
| 2026-08-13 12:00 |
09:57:00.50 |
-85:23:46.0 |
HIP 120071 |
21.17 |
| 2026-08-14 00:00 |
09:57:41.39 |
-85:23:40.7 |
HIP 120071 |
20.59 |
| 2026-08-14 12:00 |
09:58:22.28 |
-85:23:35.7 |
HIP 120071 |
20.03 |
| 2026-08-15 00:00 |
09:59:03.17 |
-85:23:31.0 |
HIP 120071 |
19.49 |
| 2026-08-15 12:00 |
09:59:44.06 |
-85:23:26.6 |
HIP 120071 |
18.98 |
| 2026-08-16 00:00 |
10:00:24.94 |
-85:23:22.5 |
HIP 120071 |
18.50 |
| 2026-08-16 12:00 |
10:01:05.83 |
-85:23:18.7 |
HIP 120071 |
18.05 |
| 2026-08-17 00:00 |
10:01:46.71 |
-85:23:15.2 |
HIP 120071 |
17.63 |
| 2026-08-17 12:00 |
10:02:27.59 |
-85:23:11.9 |
HIP 120071 |
17.25 |
| 2026-08-18 00:00 |
10:03:08.47 |
-85:23:09.0 |
HIP 120071 |
16.91 |
| 2026-08-18 12:00 |
10:03:49.34 |
-85:23:06.4 |
HIP 120071 |
16.60 |
| 2026-08-19 00:00 |
10:04:30.21 |
-85:23:04.0 |
HIP 120071 |
16.35 |