메타데이터
| 항목 |
값 |
| Designation |
C/2003 K4 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-10-13T17:15:09.331200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:30Z |
| Obs used |
3625 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
7.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2004-06-15.0000000 |
| e |
1.00030070 |
| q (au) |
1.023617 |
| a (au) |
-3404.074214 |
| i (deg) |
134.252518 |
| Ω (om, deg) |
18.675722 |
| ω (w, deg) |
198.442708 |
| M (ma, deg) |
-0.000599 |
밝기
산란 + 전체 선형
$$
M_a = (3.808 + 4.917\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.808 |
| n |
4.917 |
| gf |
1.000 |
| gb |
-0.895 |
| k |
0.998 |
| δ90 |
9.993 |
| 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) |
| 2026-03-26 00:00 |
01:06:03.80 |
+07:25:28.7 |
HIP 5073 |
29.11 |
| 2026-03-26 12:00 |
01:06:06.19 |
+07:25:44.4 |
HIP 5073 |
29.69 |
| 2026-03-27 00:00 |
01:06:08.59 |
+07:26:00.1 |
HIP 5089 |
29.99 |
| 2026-03-27 12:00 |
01:06:10.99 |
+07:26:15.8 |
HIP 5089 |
30.04 |
| 2026-03-28 00:00 |
01:06:13.39 |
+07:26:31.6 |
HIP 5089 |
30.11 |
| 2026-03-28 12:00 |
01:06:15.80 |
+07:26:47.3 |
HIP 5089 |
30.19 |
| 2026-03-29 00:00 |
01:06:18.21 |
+07:27:03.1 |
HIP 5089 |
30.29 |
| 2026-03-29 12:00 |
01:06:20.63 |
+07:27:19.0 |
HIP 5089 |
30.40 |
| 2026-03-30 00:00 |
01:06:23.05 |
+07:27:34.8 |
HIP 5089 |
30.52 |
| 2026-03-30 12:00 |
01:06:25.47 |
+07:27:50.7 |
HIP 5089 |
30.66 |
| 2026-03-31 00:00 |
01:06:27.89 |
+07:28:06.6 |
HIP 5089 |
30.81 |
| 2026-03-31 12:00 |
01:06:30.32 |
+07:28:22.5 |
HIP 5089 |
30.98 |
| 2026-04-01 00:00 |
01:06:32.75 |
+07:28:38.4 |
HIP 5089 |
31.16 |
| 2026-04-01 12:00 |
01:06:35.18 |
+07:28:54.3 |
HIP 5089 |
31.35 |
| 2026-04-02 00:00 |
01:06:37.61 |
+07:29:10.3 |
HIP 5089 |
31.55 |
| 2026-04-02 12:00 |
01:06:40.05 |
+07:29:26.2 |
HIP 5089 |
31.77 |
| 2026-04-03 00:00 |
01:06:42.49 |
+07:29:42.2 |
HIP 5382 |
32.00 |
| 2026-04-03 12:00 |
01:06:44.93 |
+07:29:58.2 |
HIP 5382 |
31.38 |
| 2026-04-04 00:00 |
01:06:47.37 |
+07:30:14.2 |
HIP 5382 |
30.76 |
| 2026-04-04 12:00 |
01:06:49.81 |
+07:30:30.2 |
HIP 5382 |
30.15 |
| 2026-04-05 00:00 |
01:06:52.26 |
+07:30:46.2 |
HIP 5382 |
29.53 |
| 2026-04-05 12:00 |
01:06:54.70 |
+07:31:02.2 |
HIP 5382 |
28.92 |
| 2026-04-06 00:00 |
01:06:57.15 |
+07:31:18.3 |
HIP 5382 |
28.31 |
| 2026-04-06 12:00 |
01:06:59.59 |
+07:31:34.3 |
HIP 5382 |
27.70 |
| 2026-04-07 00:00 |
01:07:02.04 |
+07:31:50.3 |
HIP 5382 |
27.10 |
| 2026-04-07 12:00 |
01:07:04.49 |
+07:32:06.4 |
HIP 5382 |
26.49 |
| 2026-04-08 00:00 |
01:07:06.94 |
+07:32:22.4 |
HIP 5382 |
25.89 |
| 2026-04-08 12:00 |
01:07:09.38 |
+07:32:38.5 |
HIP 5382 |
25.30 |
| 2026-04-09 00:00 |
01:07:11.83 |
+07:32:54.5 |
HIP 5382 |
24.70 |
| 2026-04-09 12:00 |
01:07:14.28 |
+07:33:10.6 |
HIP 5382 |
24.12 |
| 2026-04-10 00:00 |
01:07:16.73 |
+07:33:26.6 |
HIP 5382 |
23.53 |
| 2026-04-10 12:00 |
01:07:19.17 |
+07:33:42.7 |
HIP 5382 |
22.95 |
| 2026-04-11 00:00 |
01:07:21.62 |
+07:33:58.7 |
HIP 5382 |
22.37 |
| 2026-04-11 12:00 |
01:07:24.06 |
+07:34:14.8 |
HIP 5382 |
21.80 |
| 2026-04-12 00:00 |
01:07:26.51 |
+07:34:30.8 |
HIP 5382 |
21.24 |
| 2026-04-12 12:00 |
01:07:28.95 |
+07:34:46.8 |
HIP 5382 |
20.68 |
| 2026-04-13 00:00 |
01:07:31.39 |
+07:35:02.9 |
HIP 5382 |
20.12 |
| 2026-04-13 12:00 |
01:07:33.83 |
+07:35:18.9 |
HIP 5382 |
19.58 |
| 2026-04-14 00:00 |
01:07:36.27 |
+07:35:34.9 |
HIP 5382 |
19.04 |
| 2026-04-14 12:00 |
01:07:38.70 |
+07:35:50.8 |
HIP 5382 |
18.51 |
| 2026-04-15 00:00 |
01:07:41.13 |
+07:36:06.8 |
HIP 5382 |
17.99 |
| 2026-04-15 12:00 |
01:07:43.56 |
+07:36:22.8 |
HIP 5382 |
17.48 |
| 2026-04-16 00:00 |
01:07:45.99 |
+07:36:38.7 |
HIP 5382 |
16.98 |