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) |
| 2026-07-29 00:00 |
08:29:37.55 |
-58:42:52.5 |
HIP 41575 |
22.14 |
| 2026-07-29 12:00 |
08:29:42.44 |
-58:42:54.2 |
HIP 41575 |
22.40 |
| 2026-07-30 00:00 |
08:29:47.33 |
-58:42:56.1 |
HIP 41575 |
22.68 |
| 2026-07-30 12:00 |
08:29:52.22 |
-58:42:58.4 |
HIP 41575 |
22.98 |
| 2026-07-31 00:00 |
08:29:57.11 |
-58:43:01.0 |
HIP 41575 |
23.30 |
| 2026-07-31 12:00 |
08:30:01.99 |
-58:43:03.8 |
HIP 41575 |
23.64 |
| 2026-08-01 00:00 |
08:30:06.88 |
-58:43:07.0 |
HIP 41575 |
23.99 |
| 2026-08-01 12:00 |
08:30:11.75 |
-58:43:10.5 |
HIP 41575 |
24.35 |
| 2026-08-02 00:00 |
08:30:16.63 |
-58:43:14.3 |
HIP 41575 |
24.74 |
| 2026-08-02 12:00 |
08:30:21.50 |
-58:43:18.4 |
HIP 41575 |
25.13 |
| 2026-08-03 00:00 |
08:30:26.37 |
-58:43:22.8 |
HIP 41575 |
25.54 |
| 2026-08-03 12:00 |
08:30:31.24 |
-58:43:27.5 |
HIP 41575 |
25.97 |
| 2026-08-04 00:00 |
08:30:36.10 |
-58:43:32.5 |
HIP 41575 |
26.41 |
| 2026-08-04 12:00 |
08:30:40.96 |
-58:43:37.8 |
HIP 41575 |
26.85 |
| 2026-08-05 00:00 |
08:30:45.81 |
-58:43:43.4 |
HIP 41575 |
27.31 |
| 2026-08-05 12:00 |
08:30:50.66 |
-58:43:49.3 |
HIP 41575 |
27.78 |
| 2026-08-06 00:00 |
08:30:55.50 |
-58:43:55.5 |
HIP 41575 |
28.26 |
| 2026-08-06 12:00 |
08:31:00.34 |
-58:44:02.0 |
HIP 41575 |
28.75 |
| 2026-08-07 00:00 |
08:31:05.17 |
-58:44:08.9 |
HIP 41720 |
29.14 |
| 2026-08-07 12:00 |
08:31:10.00 |
-58:44:16.0 |
HIP 42100 |
29.08 |
| 2026-08-08 00:00 |
08:31:14.82 |
-58:44:23.4 |
HIP 42100 |
28.45 |
| 2026-08-08 12:00 |
08:31:19.63 |
-58:44:31.1 |
HIP 42100 |
27.81 |
| 2026-08-09 00:00 |
08:31:24.43 |
-58:44:39.2 |
HIP 42100 |
27.18 |
| 2026-08-09 12:00 |
08:31:29.23 |
-58:44:47.5 |
HIP 42100 |
26.54 |
| 2026-08-10 00:00 |
08:31:34.02 |
-58:44:56.1 |
HIP 42100 |
25.91 |
| 2026-08-10 12:00 |
08:31:38.80 |
-58:45:05.0 |
HIP 42100 |
25.28 |
| 2026-08-11 00:00 |
08:31:43.57 |
-58:45:14.2 |
HIP 42100 |
24.64 |
| 2026-08-11 12:00 |
08:31:48.34 |
-58:45:23.8 |
HIP 42100 |
24.01 |
| 2026-08-12 00:00 |
08:31:53.09 |
-58:45:33.6 |
HIP 42100 |
23.38 |
| 2026-08-12 12:00 |
08:31:57.84 |
-58:45:43.7 |
HIP 42100 |
22.75 |
| 2026-08-13 00:00 |
08:32:02.58 |
-58:45:54.1 |
HIP 42100 |
22.13 |
| 2026-08-13 12:00 |
08:32:07.30 |
-58:46:04.8 |
HIP 42100 |
21.50 |
| 2026-08-14 00:00 |
08:32:12.02 |
-58:46:15.8 |
HIP 42100 |
20.88 |
| 2026-08-14 12:00 |
08:32:16.72 |
-58:46:27.1 |
HIP 42100 |
20.25 |
| 2026-08-15 00:00 |
08:32:21.42 |
-58:46:38.7 |
HIP 42100 |
19.63 |
| 2026-08-15 12:00 |
08:32:26.10 |
-58:46:50.6 |
HIP 42100 |
19.02 |
| 2026-08-16 00:00 |
08:32:30.77 |
-58:47:02.7 |
HIP 42100 |
18.40 |
| 2026-08-16 12:00 |
08:32:35.43 |
-58:47:15.2 |
HIP 42100 |
17.79 |
| 2026-08-17 00:00 |
08:32:40.08 |
-58:47:27.9 |
HIP 42100 |
17.18 |
| 2026-08-17 12:00 |
08:32:44.71 |
-58:47:41.0 |
HIP 42100 |
16.58 |
| 2026-08-18 00:00 |
08:32:49.33 |
-58:47:54.3 |
HIP 42100 |
15.98 |
| 2026-08-18 12:00 |
08:32:53.94 |
-58:48:07.9 |
HIP 42100 |
15.39 |
| 2026-08-19 00:00 |
08:32:58.54 |
-58:48:21.8 |
HIP 42100 |
14.80 |