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) |
| 2026-05-12 00:00 |
08:25:51.87 |
+12:03:33.8 |
HIP 41247 |
17.32 |
| 2026-05-12 12:00 |
08:25:59.70 |
+12:03:48.9 |
HIP 41247 |
18.73 |
| 2026-05-13 00:00 |
08:26:07.64 |
+12:04:03.6 |
HIP 41247 |
20.25 |
| 2026-05-13 12:00 |
08:26:15.66 |
+12:04:17.7 |
HIP 41473 |
19.42 |
| 2026-05-14 00:00 |
08:26:23.78 |
+12:04:31.3 |
HIP 41473 |
17.59 |
| 2026-05-14 12:00 |
08:26:32.00 |
+12:04:44.5 |
HIP 41473 |
15.78 |
| 2026-05-15 00:00 |
08:26:40.31 |
+12:04:57.1 |
HIP 41473 |
14.00 |
| 2026-05-15 12:00 |
08:26:48.72 |
+12:05:09.3 |
HIP 41473 |
12.28 |
| 2026-05-16 00:00 |
08:26:57.22 |
+12:05:21.0 |
HIP 41473 |
10.66 |
| 2026-05-16 12:00 |
08:27:05.81 |
+12:05:32.2 |
HIP 41473 |
9.20 |
| 2026-05-17 00:00 |
08:27:14.50 |
+12:05:42.9 |
HIP 41473 |
8.03 |
| 2026-05-17 12:00 |
08:27:23.28 |
+12:05:53.1 |
HIP 41473 |
7.28 |
| 2026-05-18 00:00 |
08:27:32.15 |
+12:06:02.8 |
HIP 41473 |
7.12 |
| 2026-05-18 12:00 |
08:27:41.11 |
+12:06:12.0 |
HIP 41473 |
7.61 |
| 2026-05-19 00:00 |
08:27:50.16 |
+12:06:20.8 |
HIP 41473 |
8.65 |
| 2026-05-19 12:00 |
08:27:59.31 |
+12:06:29.0 |
HIP 41473 |
10.08 |
| 2026-05-20 00:00 |
08:28:08.54 |
+12:06:36.8 |
HIP 41473 |
11.79 |
| 2026-05-20 12:00 |
08:28:17.86 |
+12:06:44.1 |
HIP 41473 |
13.66 |
| 2026-05-21 00:00 |
08:28:27.26 |
+12:06:50.9 |
HIP 41473 |
15.66 |
| 2026-05-21 12:00 |
08:28:36.76 |
+12:06:57.2 |
HIP 41473 |
17.75 |
| 2026-05-22 00:00 |
08:28:46.34 |
+12:07:03.1 |
HIP 41473 |
19.91 |
| 2026-05-22 12:00 |
08:28:56.01 |
+12:07:08.4 |
HIP 41473 |
22.12 |
| 2026-05-23 00:00 |
08:29:05.76 |
+12:07:13.3 |
HIP 41473 |
24.38 |
| 2026-05-23 12:00 |
08:29:15.60 |
+12:07:17.7 |
HIP 41623 |
25.87 |
| 2026-05-24 00:00 |
08:29:25.52 |
+12:07:21.6 |
HIP 41623 |
26.07 |
| 2026-05-24 12:00 |
08:29:35.52 |
+12:07:25.0 |
HIP 41623 |
26.50 |
| 2026-05-25 00:00 |
08:29:45.61 |
+12:07:28.0 |
HIP 41623 |
27.16 |
| 2026-05-25 12:00 |
08:29:55.78 |
+12:07:30.5 |
HIP 41790 |
25.27 |
| 2026-05-26 00:00 |
08:30:06.04 |
+12:07:32.5 |
HIP 41790 |
23.42 |
| 2026-05-26 12:00 |
08:30:16.37 |
+12:07:34.0 |
HIP 41790 |
21.69 |
| 2026-05-27 00:00 |
08:30:26.78 |
+12:07:35.1 |
HIP 41790 |
20.11 |
| 2026-05-27 12:00 |
08:30:37.28 |
+12:07:35.6 |
HIP 41790 |
18.73 |
| 2026-05-28 00:00 |
08:30:47.85 |
+12:07:35.8 |
HIP 41790 |
17.60 |
| 2026-05-28 12:00 |
08:30:58.51 |
+12:07:35.4 |
HIP 41790 |
16.78 |
| 2026-05-29 00:00 |
08:31:09.24 |
+12:07:34.6 |
HIP 41790 |
16.33 |
| 2026-05-29 12:00 |
08:31:20.05 |
+12:07:33.3 |
HIP 41790 |
16.29 |
| 2026-05-30 00:00 |
08:31:30.93 |
+12:07:31.5 |
HIP 41790 |
16.67 |
| 2026-05-30 12:00 |
08:31:41.90 |
+12:07:29.3 |
HIP 41790 |
17.45 |
| 2026-05-31 00:00 |
08:31:52.94 |
+12:07:26.6 |
HIP 41790 |
18.60 |
| 2026-05-31 12:00 |
08:32:04.05 |
+12:07:23.5 |
HIP 41790 |
20.05 |
| 2026-06-01 00:00 |
08:32:15.24 |
+12:07:19.8 |
HIP 41790 |
21.75 |
| 2026-06-01 12:00 |
08:32:26.51 |
+12:07:15.8 |
HIP 41790 |
23.65 |
| 2026-06-02 00:00 |
08:32:37.85 |
+12:07:11.2 |
HIP 41790 |
25.72 |