ASTROSAT CZTI

Data Quality Report

Orbit 34070

Creation date: 2024-06-27T20:56:11.398827
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/AS1C07_001T04_9000004868_34070cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34070cztM0_level2_quad_clean.evt
Size (bytes)479,638,080100,186,560
Size457.4 MB 95.5 MB
Events in quadrant A2,719,580672,439
Events in quadrant B3,848,946666,516
Events in quadrant C3,320,084670,338
Events in quadrant D4,253,079628,673

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119733
B0152282
C0132952
D0166162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5660110.194346%
B56603436.060071%
C56601051.855124%
D56602113.727915%

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 7362 5661 0 0 0.00% 0.00%
B 7362 5660 258 258 3.50% 4.56%
C 7362 5661 74 74 1.01% 1.31%
D 7362 5661 195 195 2.65% 3.44%

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 15 169 185262 1430.53 647 634 129.1
A 10 83 19737 148.01 647 634 129.1
A 13 6 12672 93.27 647 634 129.1
B 5 172 689290 5718.05 636 619 120.4
B 5 31 205713 1702.9 636 619 120.4
B 0 189 141310 1168.16 636 619 120.4
C 0 10 346162 2383.41 629 634 145.0
C 15 214 244823 1684.39 629 634 145.0
C 0 207 129168 886.61 629 634 145.0
D 8 195 935484 6123.05 621 604 152.7
D 10 118 299974 1960.74 621 604 152.7
D 2 250 253145 1654.03 621 604 152.7

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