메타데이터
| 항목 |
값 |
| Designation |
C/1999 L3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-01-04T21:48:00.221760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:00Z |
| Obs used |
340 |
| NEO |
- |
| M1 |
8.300 |
| K1 |
15.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-12-24.0000000 |
| e |
0.97436453 |
| q (au) |
1.988918 |
| a (au) |
77.584594 |
| i (deg) |
166.099275 |
| Ω (om, deg) |
140.161317 |
| ω (w, deg) |
353.297874 |
| M (ma, deg) |
359.982825 |
밝기
산란 + 전체 선형
$$
M_a = (6.988 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.988 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.905 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1999-06-09 |
2000-01-04 |
+8.4713 |
-3.326 |
| 2000-01-05 |
2000-04-23 |
-5.4078 |
+1.574 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
23:06:23.66 |
+00:58:51.9 |
HIP 114005 |
25.60 |
| 2026-05-12 12:00 |
23:06:24.57 |
+00:59:01.3 |
HIP 114005 |
25.63 |
| 2026-05-13 00:00 |
23:06:25.46 |
+00:59:10.7 |
HIP 114005 |
25.66 |
| 2026-05-13 12:00 |
23:06:26.34 |
+00:59:19.9 |
HIP 114005 |
25.69 |
| 2026-05-14 00:00 |
23:06:27.19 |
+00:59:29.0 |
HIP 114005 |
25.72 |
| 2026-05-14 12:00 |
23:06:28.03 |
+00:59:38.0 |
HIP 114005 |
25.75 |
| 2026-05-15 00:00 |
23:06:28.85 |
+00:59:47.0 |
HIP 114005 |
25.78 |
| 2026-05-15 12:00 |
23:06:29.64 |
+00:59:55.8 |
HIP 114005 |
25.82 |
| 2026-05-16 00:00 |
23:06:30.43 |
+01:00:04.5 |
HIP 114005 |
25.85 |
| 2026-05-16 12:00 |
23:06:31.19 |
+01:00:13.1 |
HIP 114005 |
25.88 |
| 2026-05-17 00:00 |
23:06:31.93 |
+01:00:21.6 |
HIP 114005 |
25.91 |
| 2026-05-17 12:00 |
23:06:32.65 |
+01:00:30.0 |
HIP 114005 |
25.95 |
| 2026-05-18 00:00 |
23:06:33.36 |
+01:00:38.3 |
HIP 114005 |
25.98 |
| 2026-05-18 12:00 |
23:06:34.04 |
+01:00:46.5 |
HIP 114005 |
26.01 |
| 2026-05-19 00:00 |
23:06:34.71 |
+01:00:54.6 |
HIP 114005 |
26.04 |
| 2026-05-19 12:00 |
23:06:35.35 |
+01:01:02.6 |
HIP 114005 |
26.07 |
| 2026-05-20 00:00 |
23:06:35.98 |
+01:01:10.4 |
HIP 114005 |
26.10 |
| 2026-05-20 12:00 |
23:06:36.59 |
+01:01:18.2 |
HIP 114005 |
26.13 |
| 2026-05-21 00:00 |
23:06:37.17 |
+01:01:25.8 |
HIP 114005 |
26.16 |
| 2026-05-21 12:00 |
23:06:37.74 |
+01:01:33.4 |
HIP 114005 |
26.19 |
| 2026-05-22 00:00 |
23:06:38.29 |
+01:01:40.8 |
HIP 114005 |
26.21 |
| 2026-05-22 12:00 |
23:06:38.82 |
+01:01:48.1 |
HIP 114005 |
26.24 |
| 2026-05-23 00:00 |
23:06:39.33 |
+01:01:55.3 |
HIP 114005 |
26.26 |
| 2026-05-23 12:00 |
23:06:39.82 |
+01:02:02.4 |
HIP 114005 |
26.28 |
| 2026-05-24 00:00 |
23:06:40.29 |
+01:02:09.4 |
HIP 114005 |
26.30 |
| 2026-05-24 12:00 |
23:06:40.74 |
+01:02:16.3 |
HIP 114005 |
26.32 |
| 2026-05-25 00:00 |
23:06:41.17 |
+01:02:23.0 |
HIP 114005 |
26.34 |
| 2026-05-25 12:00 |
23:06:41.58 |
+01:02:29.6 |
HIP 114005 |
26.35 |
| 2026-05-26 00:00 |
23:06:41.97 |
+01:02:36.2 |
HIP 114005 |
26.36 |
| 2026-05-26 12:00 |
23:06:42.34 |
+01:02:42.6 |
HIP 114005 |
26.38 |
| 2026-05-27 00:00 |
23:06:42.69 |
+01:02:48.8 |
HIP 114005 |
26.38 |
| 2026-05-27 12:00 |
23:06:43.02 |
+01:02:55.0 |
HIP 114005 |
26.39 |
| 2026-05-28 00:00 |
23:06:43.33 |
+01:03:01.1 |
HIP 114005 |
26.39 |
| 2026-05-28 12:00 |
23:06:43.63 |
+01:03:07.0 |
HIP 114005 |
26.40 |
| 2026-05-29 00:00 |
23:06:43.90 |
+01:03:12.8 |
HIP 114005 |
26.39 |
| 2026-05-29 12:00 |
23:06:44.15 |
+01:03:18.5 |
HIP 114005 |
26.39 |
| 2026-05-30 00:00 |
23:06:44.38 |
+01:03:24.1 |
HIP 114005 |
26.39 |
| 2026-05-30 12:00 |
23:06:44.59 |
+01:03:29.6 |
HIP 114005 |
26.38 |
| 2026-05-31 00:00 |
23:06:44.78 |
+01:03:34.9 |
HIP 114005 |
26.37 |
| 2026-05-31 12:00 |
23:06:44.95 |
+01:03:40.1 |
HIP 114005 |
26.35 |
| 2026-06-01 00:00 |
23:06:45.10 |
+01:03:45.2 |
HIP 114005 |
26.34 |
| 2026-06-01 12:00 |
23:06:45.23 |
+01:03:50.2 |
HIP 114005 |
26.32 |
| 2026-06-02 00:00 |
23:06:45.34 |
+01:03:55.1 |
HIP 114005 |
26.30 |