Observation information
- date-obs: 2022-01-21
- time-obs: 03:54:15.914200000
- date-end: 2022-01-21
- time-end: 05:51:10.915900000
- obs_id: A11_059T05_9000004876
- exposure: 1880.05051284
- sourceid: NGC 1904
- observer: annapurni
- ra_pnt: 81.04413
- dec_pnt: -24.52425
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_059T05_9000004876_34149cztM0_level2.evt
| modeM0/AS1A11_059T05_9000004876_34149cztM0_level2_quad_clean.evt
|
| Size (bytes) | 492,330,240 | 45,434,880 |
| Size | 469.5 MB
| 43.3 MB
|
| Events in quadrant A | 2,373,945 | 266,873 |
| Events in quadrant B | 5,679,420 | 232,041 |
| Events in quadrant C | 3,178,475 | 272,675 |
| Events in quadrant D | 3,344,529 | 258,213 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9908 | 2 |
| B | 0 | 19971 | 1 |
| C | 0 | 12252 | 1 |
| D | 0 | 12958 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4921 | 3 | 0.060963% |
| B | 4921 | 1294 | 26.295468% |
| C | 4921 | 154 | 3.129445% |
| D | 4921 | 43 | 0.873806% |
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 | 7015 | 4922 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7015 | 4922 | 1110 | 1110 | 15.82% | 22.55% |  |
| C | 7015 | 4922 | 111 | 111 | 1.58% | 2.26% |  |
| D | 7015 | 4922 | 41 | 41 | 0.58% | 0.83% |  |
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 | 15905 | 125.06 | 609 | 597 | 122.4 |
| A | 13 | 254 | 8152 | 61.72 | 609 | 597 | 122.4 |
| A | 13 | 6 | 6244 | 46.13 | 609 | 597 | 122.4 |
| B | 5 | 31 | 1373311 | 12811.01 | 566 | 552 | 107.2 |
| B | 5 | 15 | 1227287 | 11448.27 | 566 | 552 | 107.2 |
| B | 5 | 14 | 707008 | 6592.87 | 566 | 552 | 107.2 |
| C | 0 | 10 | 384417 | 2804.34 | 595 | 601 | 136.9 |
| C | 15 | 214 | 209889 | 1529.16 | 595 | 601 | 136.9 |
| C | 14 | 254 | 170590 | 1242.02 | 595 | 601 | 136.9 |
| D | 8 | 195 | 795737 | 5401.79 | 596 | 580 | 147.2 |
| D | 10 | 118 | 114533 | 774.12 | 596 | 580 | 147.2 |
| D | 13 | 249 | 49308 | 331.03 | 596 | 580 | 147.2 |
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 |  |