메타데이터
| 항목 |
값 |
| Designation |
C/2002 Q3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-08-19T00:27:24.831360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:20Z |
| Obs used |
75 |
| NEO |
- |
| M1 |
17.100 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-08-29.0000000 |
| e |
0.99831744 |
| q (au) |
1.306123 |
| a (au) |
776.272581 |
| i (deg) |
96.895223 |
| Ω (om, deg) |
154.151313 |
| ω (w, deg) |
125.698640 |
| M (ma, deg) |
0.000455 |
밝기
산란 + 전체 선형
$$
M_a = (18.038 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.038 |
| n |
2.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
08:20:18.38 |
-60:37:25.8 |
HIP 40998 |
12.51 |
| 2026-03-26 12:00 |
08:20:15.98 |
-60:36:49.0 |
HIP 40998 |
12.81 |
| 2026-03-27 00:00 |
08:20:13.62 |
-60:36:12.0 |
HIP 40998 |
13.14 |
| 2026-03-27 12:00 |
08:20:11.30 |
-60:35:35.0 |
HIP 40998 |
13.49 |
| 2026-03-28 00:00 |
08:20:09.03 |
-60:34:57.8 |
HIP 40998 |
13.85 |
| 2026-03-28 12:00 |
08:20:06.79 |
-60:34:20.4 |
HIP 40998 |
14.24 |
| 2026-03-29 00:00 |
08:20:04.60 |
-60:33:43.0 |
HIP 40998 |
14.64 |
| 2026-03-29 12:00 |
08:20:02.46 |
-60:33:05.4 |
HIP 40998 |
15.06 |
| 2026-03-30 00:00 |
08:20:00.35 |
-60:32:27.7 |
HIP 40998 |
15.49 |
| 2026-03-30 12:00 |
08:19:58.29 |
-60:31:49.9 |
HIP 40998 |
15.94 |
| 2026-03-31 00:00 |
08:19:56.27 |
-60:31:11.9 |
HIP 40980 |
16.09 |
| 2026-03-31 12:00 |
08:19:54.30 |
-60:30:33.8 |
HIP 40980 |
15.97 |
| 2026-04-01 00:00 |
08:19:52.37 |
-60:29:55.7 |
HIP 40690 |
15.76 |
| 2026-04-01 12:00 |
08:19:50.48 |
-60:29:17.4 |
HIP 40690 |
15.15 |
| 2026-04-02 00:00 |
08:19:48.64 |
-60:28:39.0 |
HIP 40690 |
14.54 |
| 2026-04-02 12:00 |
08:19:46.84 |
-60:28:00.5 |
HIP 40690 |
13.94 |
| 2026-04-03 00:00 |
08:19:45.08 |
-60:27:21.9 |
HIP 40690 |
13.36 |
| 2026-04-03 12:00 |
08:19:43.37 |
-60:26:43.2 |
HIP 40690 |
12.78 |
| 2026-04-04 00:00 |
08:19:41.70 |
-60:26:04.4 |
HIP 40690 |
12.22 |
| 2026-04-04 12:00 |
08:19:40.07 |
-60:25:25.5 |
HIP 40690 |
11.68 |
| 2026-04-05 00:00 |
08:19:38.49 |
-60:24:46.5 |
HIP 40690 |
11.15 |
| 2026-04-05 12:00 |
08:19:36.95 |
-60:24:07.4 |
HIP 40690 |
10.65 |
| 2026-04-06 00:00 |
08:19:35.46 |
-60:23:28.3 |
HIP 40690 |
10.17 |
| 2026-04-06 12:00 |
08:19:34.01 |
-60:22:49.0 |
HIP 40690 |
9.71 |
| 2026-04-07 00:00 |
08:19:32.61 |
-60:22:09.7 |
HIP 40690 |
9.29 |
| 2026-04-07 12:00 |
08:19:31.24 |
-60:21:30.3 |
HIP 40690 |
8.91 |
| 2026-04-08 00:00 |
08:19:29.93 |
-60:20:50.9 |
HIP 40690 |
8.56 |
| 2026-04-08 12:00 |
08:19:28.66 |
-60:20:11.3 |
HIP 40690 |
8.27 |
| 2026-04-09 00:00 |
08:19:27.43 |
-60:19:31.7 |
HIP 40690 |
8.02 |
| 2026-04-09 12:00 |
08:19:26.24 |
-60:18:52.1 |
HIP 40690 |
7.83 |
| 2026-04-10 00:00 |
08:19:25.11 |
-60:18:12.3 |
HIP 40741 |
7.34 |
| 2026-04-10 12:00 |
08:19:24.01 |
-60:17:32.6 |
HIP 40741 |
6.69 |
| 2026-04-11 00:00 |
08:19:22.96 |
-60:16:52.7 |
HIP 40741 |
6.05 |
| 2026-04-11 12:00 |
08:19:21.96 |
-60:16:12.8 |
HIP 40741 |
5.42 |
| 2026-04-12 00:00 |
08:19:21.00 |
-60:15:32.9 |
HIP 40741 |
4.81 |
| 2026-04-12 12:00 |
08:19:20.08 |
-60:14:52.9 |
HIP 40741 |
4.21 |
| 2026-04-13 00:00 |
08:19:19.21 |
-60:14:12.9 |
HIP 40741 |
3.65 |
| 2026-04-13 12:00 |
08:19:18.38 |
-60:13:32.8 |
HIP 40741 |
3.14 |
| 2026-04-14 00:00 |
08:19:17.60 |
-60:12:52.7 |
HIP 40741 |
2.71 |
| 2026-04-14 12:00 |
08:19:16.87 |
-60:12:12.5 |
HIP 40741 |
2.39 |
| 2026-04-15 00:00 |
08:19:16.18 |
-60:11:32.3 |
HIP 40741 |
2.25 |
| 2026-04-15 12:00 |
08:19:15.53 |
-60:10:52.1 |
HIP 40741 |
2.31 |
| 2026-04-16 00:00 |
08:19:14.93 |
-60:10:11.9 |
HIP 40741 |
2.56 |