ASTROSAT CZTI

Data Quality Report

Orbit 42863

Creation date: 2024-06-27T22:45:07.157521
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_138T01_9000005828_42863cztM0_level2.fits modeM0/AS1T05_138T01_9000005828_42863cztM0_level2_quad_clean.evt
Size (bytes)358,580,16093,332,160
Size342.0 MB 89.0 MB
Events in quadrant A3,342,362625,041
Events in quadrant B2,701,114638,750
Events in quadrant C2,735,998635,756
Events in quadrant D4,068,418544,149

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133292
B0116852
C0115732
D0157222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5467661.207243%
B5467390.713371%
C5467170.310957%
D54673937.188586%

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 7289 5468 36 36 0.49% 0.66%
B 7289 5468 22 22 0.30% 0.40%
C 7289 5468 10 10 0.14% 0.18%
D 7289 5468 354 354 4.86% 6.47%

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 643163 5137.99 607 595 125.1
A 15 237 159276 1268.82 607 595 125.1
A 12 189 104761 832.91 607 595 125.1
B 5 172 104172 884.04 604 588 117.2
B 4 67 86639 734.4 604 588 117.2
B 0 190 30163 252.41 604 588 117.2
C 15 214 224334 1607.14 592 596 139.2
C 12 2 67936 483.71 592 596 139.2
C 2 16 53198 377.85 592 596 139.2
D 10 118 837087 5865.15 574 559 142.6
D 12 6 432189 3026.29 574 559 142.6
D 12 233 130244 909.26 574 559 142.6

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