ASTROSAT CZTI

Data Quality Report

Orbit 45832

Creation date: 2024-06-27T23:16:39.682625
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/AS1T05_185T01_9000006128_45832cztM0_level2.fits modeM0/AS1T05_185T01_9000006128_45832cztM0_level2_quad_clean.evt
Size (bytes)599,256,000115,084,800
Size571.5 MB 109.8 MB
Events in quadrant A6,638,588762,951
Events in quadrant B5,731,691780,479
Events in quadrant C3,448,822773,120
Events in quadrant D5,804,970666,084

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248115
B0219302
C0154272
D0223872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72162954.088137%
B72164416.111419%
C7216220.304878%
D72174376.055148%

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 8971 7218 106 106 1.18% 1.47%
B 8971 7218 179 179 2.00% 2.48%
C 8971 7218 2 2 0.02% 0.03%
D 8972 7218 323 323 3.60% 4.47%

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 3106852 18840.7 792 774 164.9
A 7 3 233699 1412.87 792 774 164.9
A 13 248 128462 774.52 792 774 164.9
B 3 112 2072591 13394.32 789 762 154.7
B 4 171 235646 1518.52 789 762 154.7
B 0 171 146545 942.48 789 762 154.7
C 9 54 323073 1719.51 792 796 187.4
C 3 233 27893 144.58 792 796 187.4
C 2 14 12030 59.94 792 796 187.4
D 11 241 943269 4905.22 761 737 192.1
D 12 2 705453 3667.55 761 737 192.1
D 13 249 520927 2707.22 761 737 192.1

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