Observation information
- date-obs: 2017-09-24
- time-obs: 10:00:23.502000000
- date-end: 2017-09-24
- time-end: 10:44:30.503400000
- obs_id: G07_057T03_9000001552
- exposure: 1559.06134601
- sourceid: NGC 1961
- observer: stalin
- ra_pnt: 85.51938
- dec_pnt: 69.37844
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_057T03_9000001552_10764cztM0_level2.evt
| modeM0/AS1G07_057T03_9000001552_10764cztM0_level2_quad_clean.evt
|
| Size (bytes) | 159,491,520 | 31,576,320 |
| Size | 152.1 MB
| 30.1 MB
|
| Events in quadrant A | 846,376 | 215,579 |
| Events in quadrant B | 1,556,612 | 208,231 |
| Events in quadrant C | 767,754 | 219,763 |
| Events in quadrant D | 1,548,109 | 193,919 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34 | 0 |
| B | 0 | 34 | 0 |
| C | 0 | 34 | 0 |
| D | 0 | 34 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3469 | 2 |
| B | 0 | 5712 | 1 |
| C | 0 | 3290 | 1 |
| D | 0 | 5659 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1602 | 47 | 2.933833% |
| B | 1602 | 214 | 13.358302% |
| C | 1602 | 14 | 0.873908% |
| D | 1602 | 187 | 11.672909% |
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 | 2647 | 1603 | 4 | 4 | 0.15% | 0.25% |  |
| B | 2647 | 1603 | 87 | 87 | 3.29% | 5.43% |  |
| C | 2647 | 1603 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2647 | 1603 | 147 | 147 | 5.55% | 9.17% |  |
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 | 15 | 223 | 24178 | 547.52 | 207 | 202 | 43.8 |
| A | 15 | 239 | 12993 | 292.1 | 207 | 202 | 43.8 |
| A | 1 | 162 | 6418 | 141.95 | 207 | 202 | 43.8 |
| B | 4 | 239 | 416462 | 10569.61 | 196 | 191 | 39.4 |
| B | 0 | 85 | 358550 | 9099.15 | 196 | 191 | 39.4 |
| B | 0 | 214 | 9309 | 231.52 | 196 | 191 | 39.4 |
| C | 13 | 61 | 1402 | 25.68 | 196 | 197 | 46.9 |
| C | 14 | 234 | 554 | 7.61 | 196 | 197 | 46.9 |
| C | 3 | 202 | 477 | 5.97 | 196 | 197 | 46.9 |
| D | 10 | 157 | 591289 | 12830.01 | 187 | 182 | 46.1 |
| D | 1 | 52 | 179802 | 3898.66 | 187 | 182 | 46.1 |
| D | 13 | 249 | 30364 | 655.1 | 187 | 182 | 46.1 |
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 |  |