메타데이터
| 항목 |
값 |
| Designation |
58P/Jackson-Neujmin |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2004-01-10T23:19:25.939200Z |
| Orbit solution date (soln_date, UTC) |
2025-08-20T10:51:01Z |
| Obs used |
378 |
| NEO |
- |
| M1 |
14.300 |
| K1 |
12.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-12-23.0000000 |
| e |
0.66050328 |
| q (au) |
1.388697 |
| a (au) |
4.090458 |
| i (deg) |
13.457364 |
| Ω (om, deg) |
160.614645 |
| ω (w, deg) |
200.436069 |
| M (ma, deg) |
357.739756 |
밝기
산란 + 전체 선형
$$
M_a = (11.498 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.498 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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 |
| 2020-04-08 |
2020-11-23 |
+24.7519 |
-5.644 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
13:43:29.75 |
+00:28:23.7 |
HIP 67050 |
19.85 |
| 2026-03-26 12:00 |
13:43:15.61 |
+00:30:26.6 |
HIP 67050 |
21.35 |
| 2026-03-27 00:00 |
13:43:01.38 |
+00:32:29.6 |
HIP 67050 |
23.49 |
| 2026-03-27 12:00 |
13:42:47.06 |
+00:34:32.7 |
HIP 66875 |
26.08 |
| 2026-03-28 00:00 |
13:42:32.65 |
+00:36:35.7 |
HIP 66875 |
23.40 |
| 2026-03-28 12:00 |
13:42:18.16 |
+00:38:38.8 |
HIP 66875 |
21.19 |
| 2026-03-29 00:00 |
13:42:03.57 |
+00:40:41.8 |
HIP 66875 |
19.64 |
| 2026-03-29 12:00 |
13:41:48.90 |
+00:42:44.8 |
HIP 66875 |
18.91 |
| 2026-03-30 00:00 |
13:41:34.15 |
+00:44:47.8 |
HIP 66875 |
19.11 |
| 2026-03-30 12:00 |
13:41:19.32 |
+00:46:50.7 |
HIP 66875 |
20.23 |
| 2026-03-31 00:00 |
13:41:04.41 |
+00:48:53.5 |
HIP 66875 |
22.13 |
| 2026-03-31 12:00 |
13:40:49.43 |
+00:50:56.2 |
HIP 66637 |
23.63 |
| 2026-04-01 00:00 |
13:40:34.37 |
+00:52:58.9 |
HIP 66637 |
19.41 |
| 2026-04-01 12:00 |
13:40:19.24 |
+00:55:01.4 |
HIP 66637 |
15.22 |
| 2026-04-02 00:00 |
13:40:04.04 |
+00:57:03.8 |
HIP 66637 |
11.09 |
| 2026-04-02 12:00 |
13:39:48.77 |
+00:59:06.0 |
HIP 66637 |
7.18 |
| 2026-04-03 00:00 |
13:39:33.43 |
+01:01:08.1 |
HIP 66637 |
4.18 |
| 2026-04-03 12:00 |
13:39:18.03 |
+01:03:10.0 |
HIP 66637 |
4.61 |
| 2026-04-04 00:00 |
13:39:02.57 |
+01:05:11.6 |
HIP 66637 |
7.95 |
| 2026-04-04 12:00 |
13:38:47.05 |
+01:07:13.1 |
HIP 66551 |
8.99 |
| 2026-04-05 00:00 |
13:38:31.47 |
+01:09:14.4 |
HIP 66551 |
6.06 |
| 2026-04-05 12:00 |
13:38:15.83 |
+01:11:15.4 |
HIP 66551 |
5.58 |
| 2026-04-06 00:00 |
13:38:00.14 |
+01:13:16.1 |
HIP 66551 |
8.03 |
| 2026-04-06 12:00 |
13:37:44.40 |
+01:15:16.6 |
HIP 66551 |
11.71 |
| 2026-04-07 00:00 |
13:37:28.61 |
+01:17:16.7 |
HIP 66551 |
15.78 |
| 2026-04-07 12:00 |
13:37:12.77 |
+01:19:16.6 |
HIP 66354 |
19.12 |
| 2026-04-08 00:00 |
13:36:56.89 |
+01:21:16.1 |
HIP 66354 |
16.51 |
| 2026-04-08 12:00 |
13:36:40.97 |
+01:23:15.3 |
HIP 66354 |
14.80 |
| 2026-04-09 00:00 |
13:36:25.00 |
+01:25:14.2 |
HIP 66354 |
14.30 |
| 2026-04-09 12:00 |
13:36:09.00 |
+01:27:12.7 |
HIP 66354 |
15.15 |
| 2026-04-10 00:00 |
13:35:52.96 |
+01:29:10.7 |
HIP 66354 |
17.15 |
| 2026-04-10 12:00 |
13:35:36.89 |
+01:31:08.4 |
HIP 66354 |
19.96 |
| 2026-04-11 00:00 |
13:35:20.79 |
+01:33:05.7 |
HIP 66354 |
23.29 |
| 2026-04-11 12:00 |
13:35:04.65 |
+01:35:02.5 |
HIP 66169 |
21.00 |
| 2026-04-12 00:00 |
13:34:48.50 |
+01:36:58.9 |
HIP 66169 |
16.52 |
| 2026-04-12 12:00 |
13:34:32.31 |
+01:38:54.8 |
HIP 66169 |
12.05 |
| 2026-04-13 00:00 |
13:34:16.11 |
+01:40:50.2 |
HIP 66169 |
7.58 |
| 2026-04-13 12:00 |
13:33:59.88 |
+01:42:45.1 |
HIP 66169 |
3.15 |
| 2026-04-14 00:00 |
13:33:43.64 |
+01:44:39.5 |
HIP 66169 |
1.61 |
| 2026-04-14 12:00 |
13:33:27.39 |
+01:46:33.4 |
HIP 66169 |
5.95 |
| 2026-04-15 00:00 |
13:33:11.12 |
+01:48:26.7 |
HIP 66169 |
10.41 |
| 2026-04-15 12:00 |
13:32:54.84 |
+01:50:19.5 |
HIP 66071 |
13.99 |
| 2026-04-16 00:00 |
13:32:38.56 |
+01:52:11.7 |
HIP 66071 |
11.75 |