Observation information
- date-obs: 2021-02-18
- time-obs: 00:08:36.908500000
- date-end: 2021-02-18
- time-end: 02:38:07.906400000
- obs_id: A10_099T01_9000004184
- exposure: 6052.47601075
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_099T01_9000004184_29158cztM0_level2.evt
| modeM0/AS1A10_099T01_9000004184_29158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 630,072,000 | 122,120,640 |
| Size | 600.9 MB
| 116.5 MB
|
| Events in quadrant A | 4,157,107 | 787,452 |
| Events in quadrant B | 4,330,638 | 802,781 |
| Events in quadrant C | 4,261,007 | 771,396 |
| Events in quadrant D | 5,750,239 | 740,036 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 178 | 0 |
| B | 0 | 178 | 0 |
| C | 0 | 178 | 0 |
| D | 0 | 178 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17968 | 2 |
| B | 0 | 18335 | 2 |
| C | 0 | 18092 | 2 |
| D | 0 | 22981 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8601 | 108 | 1.255668% |
| B | 8602 | 182 | 2.115787% |
| C | 8602 | 199 | 2.313415% |
| D | 8602 | 326 | 3.789816% |
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 | 8971 | 8605 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8972 | 8606 | 2 | 2 | 0.02% | 0.02% |  |
| C | 8972 | 8606 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8972 | 8606 | 178 | 178 | 1.98% | 2.07% |  |
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 | 13 | 254 | 15244 | 64.89 | 1076 | 1051 | 218.7 |
| A | 3 | 137 | 11242 | 46.59 | 1076 | 1051 | 218.7 |
| A | 0 | 226 | 9141 | 36.98 | 1076 | 1051 | 218.7 |
| B | 0 | 183 | 56308 | 263.97 | 1070 | 1042 | 209.4 |
| B | 0 | 189 | 33643 | 155.71 | 1070 | 1042 | 209.4 |
| B | 12 | 111 | 26289 | 120.59 | 1070 | 1042 | 209.4 |
| C | 14 | 238 | 170799 | 688.68 | 1037 | 1045 | 246.5 |
| C | 3 | 233 | 23381 | 90.62 | 1037 | 1045 | 246.5 |
| C | 2 | 114 | 20300 | 78.12 | 1037 | 1045 | 246.5 |
| D | 1 | 52 | 1375957 | 5560.2 | 1031 | 1004 | 247.3 |
| D | 8 | 195 | 389564 | 1571.31 | 1031 | 1004 | 247.3 |
| D | 2 | 250 | 44213 | 174.73 | 1031 | 1004 | 247.3 |
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 |  |