메타데이터
| 항목 |
값 |
| Designation |
307P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-12-20T02:14:44.448000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:19Z |
| Obs used |
220 |
| NEO |
- |
| M1 |
13.100 |
| K1 |
15.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-03-15.0000000 |
| e |
0.67474337 |
| q (au) |
1.888711 |
| a (au) |
5.806833 |
| i (deg) |
4.424845 |
| Ω (om, deg) |
158.120857 |
| ω (w, deg) |
222.112616 |
| M (ma, deg) |
314.562147 |
밝기
산란 + 전체 선형
$$
M_a = (12.505 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.505 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.912 |
| 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 |
16:10:22.14 |
-16:14:12.6 |
HIP 79094 |
25.62 |
| 2026-03-26 12:00 |
16:10:18.05 |
-16:13:40.6 |
HIP 79094 |
24.52 |
| 2026-03-27 00:00 |
16:10:13.80 |
-16:13:08.2 |
HIP 79094 |
23.38 |
| 2026-03-27 12:00 |
16:10:09.40 |
-16:12:35.4 |
HIP 79094 |
22.20 |
| 2026-03-28 00:00 |
16:10:04.84 |
-16:12:02.3 |
HIP 79094 |
20.99 |
| 2026-03-28 12:00 |
16:10:00.14 |
-16:11:28.8 |
HIP 79094 |
19.75 |
| 2026-03-29 00:00 |
16:09:55.29 |
-16:10:54.9 |
HIP 79094 |
18.47 |
| 2026-03-29 12:00 |
16:09:50.28 |
-16:10:20.7 |
HIP 79094 |
17.15 |
| 2026-03-30 00:00 |
16:09:45.13 |
-16:09:46.1 |
HIP 79094 |
15.81 |
| 2026-03-30 12:00 |
16:09:39.82 |
-16:09:11.2 |
HIP 79094 |
14.43 |
| 2026-03-31 00:00 |
16:09:34.37 |
-16:08:36.0 |
HIP 79094 |
13.01 |
| 2026-03-31 12:00 |
16:09:28.76 |
-16:08:00.3 |
HIP 79094 |
11.57 |
| 2026-04-01 00:00 |
16:09:23.01 |
-16:07:24.4 |
HIP 79094 |
10.10 |
| 2026-04-01 12:00 |
16:09:17.11 |
-16:06:48.1 |
HIP 79094 |
8.60 |
| 2026-04-02 00:00 |
16:09:11.07 |
-16:06:11.4 |
HIP 79094 |
7.09 |
| 2026-04-02 12:00 |
16:09:04.87 |
-16:05:34.4 |
HIP 79094 |
5.58 |
| 2026-04-03 00:00 |
16:08:58.53 |
-16:04:57.1 |
HIP 79094 |
4.11 |
| 2026-04-03 12:00 |
16:08:52.04 |
-16:04:19.4 |
HIP 79094 |
2.80 |
| 2026-04-04 00:00 |
16:08:45.41 |
-16:03:41.5 |
HIP 79094 |
2.11 |
| 2026-04-04 12:00 |
16:08:38.62 |
-16:03:03.1 |
HIP 79094 |
2.65 |
| 2026-04-05 00:00 |
16:08:31.70 |
-16:02:24.5 |
HIP 79094 |
3.98 |
| 2026-04-05 12:00 |
16:08:24.63 |
-16:01:45.5 |
HIP 79094 |
5.61 |
| 2026-04-06 00:00 |
16:08:17.41 |
-16:01:06.2 |
HIP 79094 |
7.35 |
| 2026-04-06 12:00 |
16:08:10.06 |
-16:00:26.6 |
HIP 79094 |
9.17 |
| 2026-04-07 00:00 |
16:08:02.56 |
-15:59:46.6 |
HIP 79094 |
11.05 |
| 2026-04-07 12:00 |
16:07:54.91 |
-15:59:06.4 |
HIP 79094 |
12.97 |
| 2026-04-08 00:00 |
16:07:47.13 |
-15:58:25.8 |
HIP 79094 |
14.93 |
| 2026-04-08 12:00 |
16:07:39.20 |
-15:57:44.9 |
HIP 78941 |
15.62 |
| 2026-04-09 00:00 |
16:07:31.13 |
-15:57:03.7 |
HIP 78941 |
14.84 |
| 2026-04-09 12:00 |
16:07:22.93 |
-15:56:22.2 |
HIP 78941 |
14.31 |
| 2026-04-10 00:00 |
16:07:14.58 |
-15:55:40.4 |
HIP 78941 |
14.07 |
| 2026-04-10 12:00 |
16:07:06.09 |
-15:54:58.3 |
HIP 78941 |
14.14 |
| 2026-04-11 00:00 |
16:06:57.47 |
-15:54:15.9 |
HIP 78941 |
14.53 |
| 2026-04-11 12:00 |
16:06:48.71 |
-15:53:33.3 |
HIP 78941 |
15.24 |
| 2026-04-12 00:00 |
16:06:39.82 |
-15:52:50.3 |
HIP 78941 |
16.24 |
| 2026-04-12 12:00 |
16:06:30.78 |
-15:52:07.1 |
HIP 78941 |
17.49 |
| 2026-04-13 00:00 |
16:06:21.62 |
-15:51:23.5 |
HIP 78941 |
18.94 |
| 2026-04-13 12:00 |
16:06:12.32 |
-15:50:39.7 |
HIP 78941 |
20.58 |
| 2026-04-14 00:00 |
16:06:02.89 |
-15:49:55.6 |
HIP 78879 |
21.83 |
| 2026-04-14 12:00 |
16:05:53.32 |
-15:49:11.3 |
HIP 78879 |
21.32 |
| 2026-04-15 00:00 |
16:05:43.63 |
-15:48:26.7 |
HIP 78879 |
21.07 |
| 2026-04-15 12:00 |
16:05:33.81 |
-15:47:41.8 |
HIP 78879 |
21.12 |
| 2026-04-16 00:00 |
16:05:23.85 |
-15:46:56.7 |
HIP 78879 |
21.47 |