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) |
| 2026-09-20 00:00 |
13:41:28.62 |
-01:13:04.6 |
HIP 66927 |
22.30 |
| 2026-09-20 12:00 |
13:41:48.77 |
-01:15:10.7 |
HIP 66927 |
17.47 |
| 2026-09-21 00:00 |
13:42:08.99 |
-01:17:16.8 |
HIP 66927 |
13.11 |
| 2026-09-21 12:00 |
13:42:29.27 |
-01:19:22.9 |
HIP 66927 |
9.93 |
| 2026-09-22 00:00 |
13:42:49.61 |
-01:21:29.0 |
HIP 66927 |
9.23 |
| 2026-09-22 12:00 |
13:43:10.02 |
-01:23:35.1 |
HIP 66927 |
11.52 |
| 2026-09-23 00:00 |
13:43:30.49 |
-01:25:41.2 |
HIP 66927 |
15.53 |
| 2026-09-23 12:00 |
13:43:51.03 |
-01:27:47.3 |
HIP 66927 |
20.28 |
| 2026-09-24 00:00 |
13:44:11.62 |
-01:29:53.4 |
HIP 66927 |
25.36 |
| 2026-09-24 12:00 |
13:44:32.28 |
-01:31:59.5 |
HIP 66927 |
30.63 |
| 2026-09-25 00:00 |
13:44:52.99 |
-01:34:05.5 |
HIP 66927 |
36.00 |
| 2026-09-25 12:00 |
13:45:13.77 |
-01:36:11.5 |
HIP 66927 |
41.43 |
| 2026-09-26 00:00 |
13:45:34.60 |
-01:38:17.5 |
HIP 67339 |
38.04 |
| 2026-09-26 12:00 |
13:45:55.49 |
-01:40:23.5 |
HIP 67339 |
33.14 |
| 2026-09-27 00:00 |
13:46:16.44 |
-01:42:29.4 |
HIP 67339 |
28.50 |
| 2026-09-27 12:00 |
13:46:37.45 |
-01:44:35.3 |
HIP 67339 |
24.26 |
| 2026-09-28 00:00 |
13:46:58.52 |
-01:46:41.1 |
HIP 67339 |
20.71 |
| 2026-09-28 12:00 |
13:47:19.64 |
-01:48:46.8 |
HIP 67339 |
18.25 |
| 2026-09-29 00:00 |
13:47:40.82 |
-01:50:52.5 |
HIP 67339 |
17.36 |
| 2026-09-29 12:00 |
13:48:02.06 |
-01:52:58.2 |
HIP 67339 |
18.29 |
| 2026-09-30 00:00 |
13:48:23.35 |
-01:55:03.8 |
HIP 67439 |
13.46 |
| 2026-09-30 12:00 |
13:48:44.69 |
-01:57:09.3 |
HIP 67439 |
8.23 |
| 2026-10-01 00:00 |
13:49:06.09 |
-01:59:14.7 |
HIP 67439 |
4.46 |
| 2026-10-01 12:00 |
13:49:27.54 |
-02:01:20.1 |
HIP 67439 |
6.16 |
| 2026-10-02 00:00 |
13:49:49.05 |
-02:03:25.4 |
HIP 67439 |
11.07 |
| 2026-10-02 12:00 |
13:50:10.61 |
-02:05:30.5 |
HIP 67439 |
16.55 |
| 2026-10-03 00:00 |
13:50:32.22 |
-02:07:35.6 |
HIP 67439 |
22.19 |
| 2026-10-03 12:00 |
13:50:53.89 |
-02:09:40.6 |
HIP 67723 |
25.63 |
| 2026-10-04 00:00 |
13:51:15.60 |
-02:11:45.5 |
HIP 67723 |
19.86 |
| 2026-10-04 12:00 |
13:51:37.37 |
-02:13:50.3 |
HIP 67723 |
14.12 |
| 2026-10-05 00:00 |
13:51:59.19 |
-02:15:55.0 |
HIP 67723 |
8.47 |
| 2026-10-05 12:00 |
13:52:21.05 |
-02:17:59.6 |
HIP 67723 |
3.50 |
| 2026-10-06 00:00 |
13:52:42.97 |
-02:20:04.0 |
HIP 67723 |
4.59 |
| 2026-10-06 12:00 |
13:53:04.93 |
-02:22:08.3 |
HIP 67723 |
9.94 |
| 2026-10-07 00:00 |
13:53:26.95 |
-02:24:12.5 |
HIP 67723 |
15.67 |
| 2026-10-07 12:00 |
13:53:49.01 |
-02:26:16.6 |
HIP 67946 |
16.08 |
| 2026-10-08 00:00 |
13:54:11.11 |
-02:28:20.5 |
HIP 67946 |
11.58 |
| 2026-10-08 12:00 |
13:54:33.27 |
-02:30:24.2 |
HIP 67946 |
8.89 |
| 2026-10-09 00:00 |
13:54:55.46 |
-02:32:27.8 |
HIP 67946 |
9.69 |
| 2026-10-09 12:00 |
13:55:17.71 |
-02:34:31.2 |
HIP 67946 |
13.36 |
| 2026-10-10 00:00 |
13:55:39.99 |
-02:36:34.5 |
HIP 67946 |
18.27 |
| 2026-10-10 12:00 |
13:56:02.33 |
-02:38:37.6 |
HIP 67946 |
23.66 |
| 2026-10-11 00:00 |
13:56:24.70 |
-02:40:40.5 |
HIP 67946 |
29.27 |