ASTROSAT CZTI

Data Quality Report

Orbit 12304

Creation date: 2024-06-27T16:25:12.194379
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/AS1A04_183T02_9000001816_12304cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12304cztM0_level2_quad_clean.evt
Size (bytes)581,080,32081,253,440
Size554.2 MB 77.5 MB
Events in quadrant A3,951,916517,578
Events in quadrant B5,706,384459,508
Events in quadrant C3,432,851524,072
Events in quadrant D4,053,679492,718

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160383
B0211152
C0143622
D0162792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66851452.169035%
B6685105015.706806%
C6685941.406133%
D66851762.632760%

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 9301 6688 0 0 0.00% 0.00%
B 9301 6688 680 680 7.31% 10.17%
C 9301 6688 11 11 0.12% 0.16%
D 9301 6688 77 77 0.83% 1.15%

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 1 162 180356 1002.7 883 865 179.0
A 1 178 101081 559.84 883 865 179.0
A 1 161 88314 488.52 883 865 179.0
B 0 85 1864574 11744.02 831 812 158.7
B 4 239 506874 3188.82 831 812 158.7
B 0 197 22889 139.11 831 812 158.7
C 4 254 47791 235.67 855 861 199.1
C 14 234 42682 210.01 855 861 199.1
C 15 208 12104 56.46 855 861 199.1
D 1 52 543542 2660.29 846 823 204.0
D 10 50 75060 363.89 846 823 204.0
D 11 129 72303 350.38 846 823 204.0

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