Observation information
- date-obs: 2024-04-16
- time-obs: 21:29:10.295000000
- date-end: 2024-04-16
- time-end: 23:47:33.024300000
- obs_id: A13_094T02_9000006190
- exposure: 7419.83086228
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_094T02_9000006190_46247cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46247cztM0_level2_quad_clean.evt
|
| Size (bytes) | 658,062,720 | 125,732,160 |
| Size | 627.6 MB
| 119.9 MB
|
| Events in quadrant A | 7,683,868 | 820,296 |
| Events in quadrant B | 5,465,607 | 841,947 |
| Events in quadrant C | 4,014,397 | 852,286 |
| Events in quadrant D | 6,579,746 | 739,032 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 0 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28301 | 1 |
| B | 0 | 21763 | 1 |
| C | 0 | 17896 | 1 |
| D | 0 | 25160 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7953 | 370 | 4.652332% |
| B | 7954 | 406 | 5.104350% |
| C | 7954 | 136 | 1.709832% |
| D | 7954 | 634 | 7.970832% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 8303 | 7954 | 175 | 175 | 2.11% | 2.20% |  |
| B | 8304 | 7954 | 226 | 226 | 2.72% | 2.84% |  |
| C | 8304 | 7955 | 103 | 103 | 1.24% | 1.29% |  |
| D | 8304 | 7955 | 549 | 549 | 6.61% | 6.90% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 10 | 83 | 3585517 | 19705.54 | 866 | 846 | 181.9 |
| A | 0 | 247 | 553864 | 3040.03 | 866 | 846 | 181.9 |
| A | 6 | 10 | 122445 | 668.45 | 866 | 846 | 181.9 |
| B | 3 | 112 | 1186721 | 7043.84 | 863 | 836 | 168.4 |
| B | 5 | 255 | 429738 | 2547.56 | 863 | 836 | 168.4 |
| B | 5 | 172 | 191951 | 1135.17 | 863 | 836 | 168.4 |
| C | 12 | 2 | 404416 | 1966.02 | 874 | 875 | 205.3 |
| C | 14 | 254 | 90891 | 438.55 | 874 | 875 | 205.3 |
| C | 1 | 3 | 54897 | 263.19 | 874 | 875 | 205.3 |
| D | 1 | 52 | 1175312 | 5510.3 | 847 | 819 | 213.1 |
| D | 2 | 249 | 645307 | 3023.7 | 847 | 819 | 213.1 |
| D | 12 | 128 | 493338 | 2310.72 | 847 | 819 | 213.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |