메타데이터
| 항목 |
값 |
| Designation |
P/2011 JB15 (Spacewatch-Boattini) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2012-01-21T16:06:25.079040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:49Z |
| Obs used |
120 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
13.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-06-09.0000000 |
| e |
0.31873584 |
| q (au) |
5.018710 |
| a (au) |
7.366761 |
| i (deg) |
19.141273 |
| Ω (om, deg) |
153.768180 |
| ω (w, deg) |
110.926709 |
| M (ma, deg) |
348.826598 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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 |
08:21:40.15 |
+11:05:03.0 |
HIP 40983 |
3.46 |
| 2026-03-26 12:00 |
08:21:37.46 |
+11:06:00.1 |
HIP 40983 |
4.61 |
| 2026-03-27 00:00 |
08:21:34.88 |
+11:06:56.8 |
HIP 40983 |
5.74 |
| 2026-03-27 12:00 |
08:21:32.42 |
+11:07:53.1 |
HIP 40983 |
6.85 |
| 2026-03-28 00:00 |
08:21:30.08 |
+11:08:49.1 |
HIP 40983 |
7.94 |
| 2026-03-28 12:00 |
08:21:27.85 |
+11:09:44.7 |
HIP 40983 |
9.01 |
| 2026-03-29 00:00 |
08:21:25.74 |
+11:10:39.9 |
HIP 40983 |
10.06 |
| 2026-03-29 12:00 |
08:21:23.74 |
+11:11:34.8 |
HIP 40983 |
11.08 |
| 2026-03-30 00:00 |
08:21:21.87 |
+11:12:29.3 |
HIP 40983 |
12.09 |
| 2026-03-30 12:00 |
08:21:20.11 |
+11:13:23.4 |
HIP 40983 |
13.08 |
| 2026-03-31 00:00 |
08:21:18.46 |
+11:14:17.2 |
HIP 40983 |
14.05 |
| 2026-03-31 12:00 |
08:21:16.94 |
+11:15:10.6 |
HIP 40983 |
15.00 |
| 2026-04-01 00:00 |
08:21:15.53 |
+11:16:03.6 |
HIP 40983 |
15.93 |
| 2026-04-01 12:00 |
08:21:14.24 |
+11:16:56.2 |
HIP 40983 |
16.84 |
| 2026-04-02 00:00 |
08:21:13.06 |
+11:17:48.4 |
HIP 40983 |
17.74 |
| 2026-04-02 12:00 |
08:21:12.01 |
+11:18:40.2 |
HIP 40983 |
18.62 |
| 2026-04-03 00:00 |
08:21:11.07 |
+11:19:31.7 |
HIP 40983 |
19.47 |
| 2026-04-03 12:00 |
08:21:10.25 |
+11:20:22.7 |
HIP 40983 |
20.32 |
| 2026-04-04 00:00 |
08:21:09.55 |
+11:21:13.4 |
HIP 40983 |
21.14 |
| 2026-04-04 12:00 |
08:21:08.96 |
+11:22:03.6 |
HIP 40983 |
21.95 |
| 2026-04-05 00:00 |
08:21:08.50 |
+11:22:53.5 |
HIP 40983 |
22.74 |
| 2026-04-05 12:00 |
08:21:08.15 |
+11:23:43.0 |
HIP 40983 |
23.52 |
| 2026-04-06 00:00 |
08:21:07.92 |
+11:24:32.0 |
HIP 40983 |
24.28 |
| 2026-04-06 12:00 |
08:21:07.80 |
+11:25:20.6 |
HIP 40983 |
25.03 |
| 2026-04-07 00:00 |
08:21:07.81 |
+11:26:08.9 |
HIP 40983 |
25.77 |
| 2026-04-07 12:00 |
08:21:07.93 |
+11:26:56.7 |
HIP 40983 |
26.49 |
| 2026-04-08 00:00 |
08:21:08.17 |
+11:27:44.1 |
HIP 40983 |
27.19 |
| 2026-04-08 12:00 |
08:21:08.53 |
+11:28:31.0 |
HIP 40983 |
27.89 |
| 2026-04-09 00:00 |
08:21:09.01 |
+11:29:17.6 |
HIP 40983 |
28.57 |
| 2026-04-09 12:00 |
08:21:09.60 |
+11:30:03.7 |
HIP 40983 |
29.24 |
| 2026-04-10 00:00 |
08:21:10.31 |
+11:30:49.4 |
HIP 40983 |
29.90 |
| 2026-04-10 12:00 |
08:21:11.15 |
+11:31:34.7 |
HIP 40983 |
30.56 |
| 2026-04-11 00:00 |
08:21:12.09 |
+11:32:19.5 |
HIP 40983 |
31.20 |
| 2026-04-11 12:00 |
08:21:13.16 |
+11:33:04.0 |
HIP 40983 |
31.83 |
| 2026-04-12 00:00 |
08:21:14.35 |
+11:33:47.9 |
HIP 40983 |
32.45 |
| 2026-04-12 12:00 |
08:21:15.65 |
+11:34:31.5 |
HIP 40983 |
33.07 |
| 2026-04-13 00:00 |
08:21:17.07 |
+11:35:14.6 |
HIP 40983 |
33.68 |
| 2026-04-13 12:00 |
08:21:18.61 |
+11:35:57.2 |
HIP 40983 |
34.29 |
| 2026-04-14 00:00 |
08:21:20.26 |
+11:36:39.4 |
HIP 40983 |
34.89 |
| 2026-04-14 12:00 |
08:21:22.03 |
+11:37:21.2 |
HIP 40983 |
35.48 |
| 2026-04-15 00:00 |
08:21:23.92 |
+11:38:02.5 |
HIP 40983 |
36.07 |
| 2026-04-15 12:00 |
08:21:25.93 |
+11:38:43.4 |
HIP 40983 |
36.66 |
| 2026-04-16 00:00 |
08:21:28.06 |
+11:39:23.8 |
HIP 40983 |
37.25 |