ASTROSAT CZTI

Data Quality Report

Orbit 34007

Creation date: 2024-06-27T20:55:18.743455
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/AS1A11_106T03_9000004864_34007cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34007cztM0_level2_quad_clean.evt
Size (bytes)510,845,76078,799,680
Size487.2 MB 75.1 MB
Events in quadrant A2,671,436508,117
Events in quadrant B3,384,496504,585
Events in quadrant C3,378,942497,939
Events in quadrant D5,640,696467,546

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118043
B0138652
C0135002
D0208982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A583860.102775%
B58381212.072628%
C5838901.541624%
D58384327.399794%

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 7181 5839 0 0 0.00% 0.00%
B 7181 5839 76 76 1.06% 1.30%
C 7181 5839 83 83 1.16% 1.42%
D 7181 5839 376 376 5.24% 6.44%

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 10 83 18386 130.19 680 665 136.1
A 13 6 13398 93.55 680 665 136.1
A 13 254 10898 75.18 680 665 136.1
B 5 172 444263 3433.76 674 657 129.2
B 0 189 86142 661.7 674 657 129.2
B 0 197 38586 293.59 674 657 129.2
C 15 214 252669 1666.32 656 661 151.2
C 4 254 233010 1536.33 656 661 151.2
C 0 10 174229 1147.66 656 661 151.2
D 8 195 1340168 8003.34 643 628 167.4
D 12 6 541789 3233.27 643 628 167.4
D 13 249 292293 1742.61 643 628 167.4

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