메타데이터
| 항목 |
값 |
| Designation |
116P/Wild 4 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-01-11T12:37:31.860480Z |
| Orbit solution date (soln_date, UTC) |
2024-09-13T12:15:05Z |
| Obs used |
4667 |
| NEO |
- |
| M1 |
7.600 |
| K1 |
17.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-04-16.0000000 |
| e |
0.37227703 |
| q (au) |
2.187086 |
| a (au) |
3.484158 |
| i (deg) |
3.607844 |
| Ω (om, deg) |
20.991856 |
| ω (w, deg) |
173.310727 |
| M (ma, deg) |
14.469123 |
밝기
산란 + 전체 선형
$$
M_a = (7.718 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.718 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.870 |
| k |
0.999 |
| 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 |
| 2020-12-05 |
2024-09-04 |
+8.4097 |
-3.455 |
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 |
03:02:56.36 |
+18:11:50.3 |
HIP 14132 |
12.52 |
| 2026-07-29 12:00 |
03:03:11.27 |
+18:13:06.2 |
HIP 14132 |
14.82 |
| 2026-07-30 00:00 |
03:03:26.03 |
+18:14:21.5 |
HIP 14132 |
17.59 |
| 2026-07-30 12:00 |
03:03:40.63 |
+18:15:36.1 |
HIP 14132 |
20.63 |
| 2026-07-31 00:00 |
03:03:55.09 |
+18:16:50.1 |
HIP 14132 |
23.82 |
| 2026-07-31 12:00 |
03:04:09.40 |
+18:18:03.5 |
HIP 14403 |
24.37 |
| 2026-08-01 00:00 |
03:04:23.55 |
+18:19:16.2 |
HIP 14403 |
21.63 |
| 2026-08-01 12:00 |
03:04:37.54 |
+18:20:28.2 |
HIP 14403 |
19.20 |
| 2026-08-02 00:00 |
03:04:51.38 |
+18:21:39.7 |
HIP 14403 |
17.17 |
| 2026-08-02 12:00 |
03:05:05.07 |
+18:22:50.4 |
HIP 14403 |
15.69 |
| 2026-08-03 00:00 |
03:05:18.59 |
+18:24:00.5 |
HIP 14403 |
14.88 |
| 2026-08-03 12:00 |
03:05:31.96 |
+18:25:10.0 |
HIP 14403 |
14.84 |
| 2026-08-04 00:00 |
03:05:45.17 |
+18:26:18.8 |
HIP 14391 |
15.27 |
| 2026-08-04 12:00 |
03:05:58.21 |
+18:27:26.9 |
HIP 14391 |
14.75 |
| 2026-08-05 00:00 |
03:06:11.09 |
+18:28:34.3 |
HIP 14391 |
14.94 |
| 2026-08-05 12:00 |
03:06:23.80 |
+18:29:41.1 |
HIP 14391 |
15.80 |
| 2026-08-06 00:00 |
03:06:36.35 |
+18:30:47.3 |
HIP 14391 |
17.20 |
| 2026-08-06 12:00 |
03:06:48.74 |
+18:31:52.7 |
HIP 14391 |
19.01 |
| 2026-08-07 00:00 |
03:07:00.95 |
+18:32:57.5 |
HIP 14391 |
21.09 |
| 2026-08-07 12:00 |
03:07:12.99 |
+18:34:01.5 |
HIP 14586 |
21.15 |
| 2026-08-08 00:00 |
03:07:24.87 |
+18:35:04.9 |
HIP 14586 |
18.35 |
| 2026-08-08 12:00 |
03:07:36.57 |
+18:36:07.6 |
HIP 14586 |
15.66 |
| 2026-08-09 00:00 |
03:07:48.09 |
+18:37:09.7 |
HIP 14586 |
13.12 |
| 2026-08-09 12:00 |
03:07:59.44 |
+18:38:11.0 |
HIP 14586 |
10.81 |
| 2026-08-10 00:00 |
03:08:10.61 |
+18:39:11.6 |
HIP 14586 |
8.87 |
| 2026-08-10 12:00 |
03:08:21.61 |
+18:40:11.5 |
HIP 14586 |
7.51 |
| 2026-08-11 00:00 |
03:08:32.43 |
+18:41:10.8 |
HIP 14586 |
7.06 |
| 2026-08-11 12:00 |
03:08:43.06 |
+18:42:09.3 |
HIP 14586 |
7.61 |
| 2026-08-12 00:00 |
03:08:53.52 |
+18:43:07.1 |
HIP 14586 |
8.94 |
| 2026-08-12 12:00 |
03:09:03.79 |
+18:44:04.2 |
HIP 14586 |
10.74 |
| 2026-08-13 00:00 |
03:09:13.87 |
+18:45:00.5 |
HIP 14586 |
12.78 |
| 2026-08-13 12:00 |
03:09:23.77 |
+18:45:56.2 |
HIP 14586 |
14.94 |
| 2026-08-14 00:00 |
03:09:33.49 |
+18:46:51.2 |
HIP 14675 |
15.06 |
| 2026-08-14 12:00 |
03:09:43.01 |
+18:47:45.4 |
HIP 14675 |
14.25 |
| 2026-08-15 00:00 |
03:09:52.35 |
+18:48:38.9 |
HIP 14675 |
13.82 |
| 2026-08-15 12:00 |
03:10:01.50 |
+18:49:31.6 |
HIP 14675 |
13.78 |
| 2026-08-16 00:00 |
03:10:10.45 |
+18:50:23.7 |
HIP 14675 |
14.12 |
| 2026-08-16 12:00 |
03:10:19.22 |
+18:51:15.0 |
HIP 14675 |
14.78 |
| 2026-08-17 00:00 |
03:10:27.79 |
+18:52:05.6 |
HIP 14675 |
15.71 |
| 2026-08-17 12:00 |
03:10:36.17 |
+18:52:55.4 |
HIP 14675 |
16.85 |
| 2026-08-18 00:00 |
03:10:44.35 |
+18:53:44.5 |
HIP 14675 |
18.13 |
| 2026-08-18 12:00 |
03:10:52.34 |
+18:54:32.9 |
HIP 14675 |
19.51 |
| 2026-08-19 00:00 |
03:11:00.13 |
+18:55:20.6 |
HIP 14675 |
20.97 |