ASTROSAT CZTI

Data Quality Report

Orbit 17048

Creation date: 2024-06-27T17:31:19.635985
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/AS1T03_004T01_9000002532_17048cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17048cztM0_level2_quad_clean.evt
Size (bytes)283,982,40053,968,320
Size270.8 MB 51.5 MB
Events in quadrant A1,712,766352,526
Events in quadrant B1,815,007364,899
Events in quadrant C2,853,213342,756
Events in quadrant D1,984,337329,777

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071671
B074561
C0108581
D081261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3445220.638607%
B3445340.986938%
C34451855.370102%
D34451043.018868%

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 4621 3447 0 0 0.00% 0.00%
B 4621 3447 4 4 0.09% 0.12%
C 4621 3446 31 31 0.67% 0.90%
D 4621 3447 52 52 1.13% 1.51%

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 0 226 3944 38.36 444 434 91.5
A 3 137 3217 30.41 444 434 91.5
A 12 194 3121 29.36 444 434 91.5
B 0 197 23268 264.22 447 437 86.4
B 0 219 14374 161.29 447 437 86.4
B 12 111 10061 111.38 447 437 86.4
C 3 233 1130769 11373.64 423 426 99.4
C 14 238 64828 648.02 423 426 99.4
C 7 247 6936 65.5 423 426 99.4
D 10 70 182057 1720.43 428 415 105.6
D 5 222 114897 1084.32 428 415 105.6
D 1 52 70319 662.1 428 415 105.6

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