ASTROSAT CZTI

Data Quality Report

Orbit 14470

Creation date: 2024-06-27T16:55:36.129067
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G08_025T01_9000002130_14470cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14470cztM0_level2_quad_clean.evt
Size (bytes)176,408,64027,069,120
Size168.2 MB 25.8 MB
Events in quadrant A1,171,348168,660
Events in quadrant B1,316,709162,039
Events in quadrant C1,344,137160,749
Events in quadrant D1,351,235161,131

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049781
B053831
C056321
D055461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A231050.216450%
B2310341.471861%
C231040.173160%
D2310281.212121%

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 2311 2311 0 0 0.00% 0.00%
B 2311 2311 24 24 1.04% 1.04%
C 2311 2311 0 0 0.00% 0.00%
D 2311 2311 21 21 0.91% 0.91%

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 8 15 21190 338.78 296 290 61.7
A 12 189 7276 113.24 296 290 61.7
A 0 226 2606 37.54 296 290 61.7
B 15 222 72579 1254.97 292 284 57.6
B 4 142 37474 645.58 292 284 57.6
B 0 219 28106 482.96 292 284 57.6
C 3 233 186754 2700.68 290 291 69.0
C 0 207 11520 162.64 290 291 69.0
C 8 112 5375 73.64 290 291 69.0
D 15 0 157754 2155.52 291 284 73.1
D 10 70 29844 404.63 291 284 73.1
D 13 122 24607 332.94 291 284 73.1

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