메타데이터
| 항목 |
값 |
| Designation |
C/1998 W3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1998-10-06T17:14:54.798720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:57Z |
| Obs used |
162 |
| NEO |
- |
| M1 |
6.500 |
| K1 |
10.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-02-19.0000000 |
| e |
1.00089959 |
| q (au) |
4.914592 |
| a (au) |
-5463.131541 |
| i (deg) |
129.186877 |
| Ω (om, deg) |
123.916981 |
| ω (w, deg) |
6.886773 |
| M (ma, deg) |
0.000330 |
밝기
산란 + 전체 선형
$$
M_a = (2.412 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
2.412 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-06-01 00:00 |
21:21:09.26 |
+09:13:58.0 |
HIP 105364 |
10.18 |
| 2026-06-01 12:00 |
21:21:08.28 |
+09:14:06.2 |
HIP 105364 |
9.91 |
| 2026-06-02 00:00 |
21:21:07.28 |
+09:14:14.3 |
HIP 105364 |
9.63 |
| 2026-06-02 12:00 |
21:21:06.25 |
+09:14:22.3 |
HIP 105364 |
9.35 |
| 2026-06-03 00:00 |
21:21:05.21 |
+09:14:30.1 |
HIP 105364 |
9.06 |
| 2026-06-03 12:00 |
21:21:04.15 |
+09:14:37.8 |
HIP 105364 |
8.78 |
| 2026-06-04 00:00 |
21:21:03.07 |
+09:14:45.4 |
HIP 105364 |
8.48 |
| 2026-06-04 12:00 |
21:21:01.98 |
+09:14:52.8 |
HIP 105364 |
8.19 |
| 2026-06-05 00:00 |
21:21:00.86 |
+09:15:00.1 |
HIP 105364 |
7.89 |
| 2026-06-05 12:00 |
21:20:59.73 |
+09:15:07.3 |
HIP 105364 |
7.59 |
| 2026-06-06 00:00 |
21:20:58.57 |
+09:15:14.3 |
HIP 105364 |
7.28 |
| 2026-06-06 12:00 |
21:20:57.40 |
+09:15:21.2 |
HIP 105364 |
6.97 |
| 2026-06-07 00:00 |
21:20:56.21 |
+09:15:28.0 |
HIP 105364 |
6.66 |
| 2026-06-07 12:00 |
21:20:55.00 |
+09:15:34.6 |
HIP 105364 |
6.34 |
| 2026-06-08 00:00 |
21:20:53.78 |
+09:15:41.1 |
HIP 105364 |
6.02 |
| 2026-06-08 12:00 |
21:20:52.53 |
+09:15:47.4 |
HIP 105364 |
5.69 |
| 2026-06-09 00:00 |
21:20:51.27 |
+09:15:53.6 |
HIP 105364 |
5.37 |
| 2026-06-09 12:00 |
21:20:49.99 |
+09:15:59.6 |
HIP 105364 |
5.04 |
| 2026-06-10 00:00 |
21:20:48.69 |
+09:16:05.6 |
HIP 105364 |
4.70 |
| 2026-06-10 12:00 |
21:20:47.37 |
+09:16:11.3 |
HIP 105364 |
4.36 |
| 2026-06-11 00:00 |
21:20:46.04 |
+09:16:16.9 |
HIP 105364 |
4.02 |
| 2026-06-11 12:00 |
21:20:44.68 |
+09:16:22.4 |
HIP 105364 |
3.67 |
| 2026-06-12 00:00 |
21:20:43.31 |
+09:16:27.8 |
HIP 105364 |
3.32 |
| 2026-06-12 12:00 |
21:20:41.93 |
+09:16:32.9 |
HIP 105364 |
2.97 |
| 2026-06-13 00:00 |
21:20:40.52 |
+09:16:38.0 |
HIP 105364 |
2.61 |
| 2026-06-13 12:00 |
21:20:39.10 |
+09:16:42.9 |
HIP 105364 |
2.25 |
| 2026-06-14 00:00 |
21:20:37.66 |
+09:16:47.6 |
HIP 105364 |
1.89 |
| 2026-06-14 12:00 |
21:20:36.20 |
+09:16:52.2 |
HIP 105364 |
1.53 |
| 2026-06-15 00:00 |
21:20:34.73 |
+09:16:56.7 |
HIP 105364 |
1.16 |
| 2026-06-15 12:00 |
21:20:33.24 |
+09:17:01.0 |
HIP 105364 |
0.79 |
| 2026-06-16 00:00 |
21:20:31.73 |
+09:17:05.1 |
HIP 105364 |
0.43 |
| 2026-06-16 12:00 |
21:20:30.20 |
+09:17:09.1 |
HIP 105364 |
0.20 |
| 2026-06-17 00:00 |
21:20:28.66 |
+09:17:13.0 |
HIP 105364 |
0.44 |
| 2026-06-17 12:00 |
21:20:27.10 |
+09:17:16.7 |
HIP 105364 |
0.80 |
| 2026-06-18 00:00 |
21:20:25.53 |
+09:17:20.2 |
HIP 105364 |
1.19 |
| 2026-06-18 12:00 |
21:20:23.94 |
+09:17:23.6 |
HIP 105364 |
1.58 |
| 2026-06-19 00:00 |
21:20:22.33 |
+09:17:26.8 |
HIP 105364 |
1.98 |
| 2026-06-19 12:00 |
21:20:20.71 |
+09:17:29.9 |
HIP 105364 |
2.38 |
| 2026-06-20 00:00 |
21:20:19.07 |
+09:17:32.8 |
HIP 105364 |
2.79 |
| 2026-06-20 12:00 |
21:20:17.41 |
+09:17:35.6 |
HIP 105364 |
3.20 |
| 2026-06-21 00:00 |
21:20:15.74 |
+09:17:38.2 |
HIP 105364 |
3.61 |
| 2026-06-21 12:00 |
21:20:14.06 |
+09:17:40.7 |
HIP 105364 |
4.03 |
| 2026-06-22 00:00 |
21:20:12.36 |
+09:17:43.0 |
HIP 105364 |
4.45 |