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) |
| 2026-06-01 00:00 |
13:12:01.72 |
+03:37:37.9 |
HIP 64453 |
28.14 |
| 2026-06-01 12:00 |
13:11:53.66 |
+03:37:53.5 |
HIP 64453 |
28.65 |
| 2026-06-02 00:00 |
13:11:45.75 |
+03:38:07.9 |
HIP 64350 |
28.51 |
| 2026-06-02 12:00 |
13:11:37.99 |
+03:38:21.0 |
HIP 64350 |
28.43 |
| 2026-06-03 00:00 |
13:11:30.38 |
+03:38:33.0 |
HIP 64350 |
28.47 |
| 2026-06-03 12:00 |
13:11:22.93 |
+03:38:43.8 |
HIP 64350 |
28.62 |
| 2026-06-04 00:00 |
13:11:15.64 |
+03:38:53.3 |
HIP 64350 |
28.87 |
| 2026-06-04 12:00 |
13:11:08.50 |
+03:39:01.7 |
HIP 64350 |
29.20 |
| 2026-06-05 00:00 |
13:11:01.51 |
+03:39:08.9 |
HIP 64350 |
29.61 |
| 2026-06-05 12:00 |
13:10:54.69 |
+03:39:14.8 |
HIP 64350 |
30.09 |
| 2026-06-06 00:00 |
13:10:48.02 |
+03:39:19.6 |
HIP 64350 |
30.62 |
| 2026-06-06 12:00 |
13:10:41.51 |
+03:39:23.2 |
HIP 64350 |
31.20 |
| 2026-06-07 00:00 |
13:10:35.16 |
+03:39:25.6 |
HIP 64350 |
31.82 |
| 2026-06-07 12:00 |
13:10:28.97 |
+03:39:26.8 |
HIP 64350 |
32.47 |
| 2026-06-08 00:00 |
13:10:22.93 |
+03:39:26.9 |
HIP 64103 |
33.12 |
| 2026-06-08 12:00 |
13:10:17.06 |
+03:39:25.7 |
HIP 64103 |
31.70 |
| 2026-06-09 00:00 |
13:10:11.35 |
+03:39:23.4 |
HIP 64103 |
30.32 |
| 2026-06-09 12:00 |
13:10:05.79 |
+03:39:19.9 |
HIP 64103 |
28.99 |
| 2026-06-10 00:00 |
13:10:00.40 |
+03:39:15.2 |
HIP 64103 |
27.71 |
| 2026-06-10 12:00 |
13:09:55.17 |
+03:39:09.3 |
HIP 64103 |
26.48 |
| 2026-06-11 00:00 |
13:09:50.10 |
+03:39:02.3 |
HIP 64103 |
25.31 |
| 2026-06-11 12:00 |
13:09:45.20 |
+03:38:54.1 |
HIP 64103 |
24.19 |
| 2026-06-12 00:00 |
13:09:40.46 |
+03:38:44.7 |
HIP 64103 |
23.12 |
| 2026-06-12 12:00 |
13:09:35.88 |
+03:38:34.2 |
HIP 64103 |
22.11 |
| 2026-06-13 00:00 |
13:09:31.46 |
+03:38:22.5 |
HIP 64103 |
21.17 |
| 2026-06-13 12:00 |
13:09:27.21 |
+03:38:09.7 |
HIP 64103 |
20.28 |
| 2026-06-14 00:00 |
13:09:23.12 |
+03:37:55.7 |
HIP 64103 |
19.46 |
| 2026-06-14 12:00 |
13:09:19.20 |
+03:37:40.6 |
HIP 64103 |
18.71 |
| 2026-06-15 00:00 |
13:09:15.44 |
+03:37:24.3 |
HIP 64103 |
18.03 |
| 2026-06-15 12:00 |
13:09:11.85 |
+03:37:06.9 |
HIP 64103 |
17.42 |
| 2026-06-16 00:00 |
13:09:08.42 |
+03:36:48.4 |
HIP 64103 |
16.89 |
| 2026-06-16 12:00 |
13:09:05.15 |
+03:36:28.7 |
HIP 64103 |
16.43 |
| 2026-06-17 00:00 |
13:09:02.05 |
+03:36:07.9 |
HIP 64103 |
16.06 |
| 2026-06-17 12:00 |
13:08:59.12 |
+03:35:46.0 |
HIP 64103 |
15.76 |
| 2026-06-18 00:00 |
13:08:56.35 |
+03:35:23.0 |
HIP 64103 |
15.54 |
| 2026-06-18 12:00 |
13:08:53.75 |
+03:34:58.9 |
HIP 64103 |
15.40 |
| 2026-06-19 00:00 |
13:08:51.31 |
+03:34:33.7 |
HIP 64103 |
15.34 |
| 2026-06-19 12:00 |
13:08:49.03 |
+03:34:07.3 |
HIP 64103 |
15.35 |
| 2026-06-20 00:00 |
13:08:46.92 |
+03:33:39.9 |
HIP 64103 |
15.43 |
| 2026-06-20 12:00 |
13:08:44.98 |
+03:33:11.4 |
HIP 64103 |
15.58 |
| 2026-06-21 00:00 |
13:08:43.20 |
+03:32:41.9 |
HIP 64103 |
15.79 |
| 2026-06-21 12:00 |
13:08:41.59 |
+03:32:11.3 |
HIP 64103 |
16.06 |
| 2026-06-22 00:00 |
13:08:40.13 |
+03:31:39.6 |
HIP 64103 |
16.39 |