ASTROSAT CZTI

Data Quality Report

Orbit 29335

Creation date: 2024-06-27T20:02:56.997962
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_279T01_9000004218_29335cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29335cztM0_level2_quad_clean.evt
Size (bytes)304,747,20032,653,440
Size290.6 MB 31.1 MB
Events in quadrant A1,240,921214,555
Events in quadrant B1,347,080218,431
Events in quadrant C1,309,526209,499
Events in quadrant D5,166,118171,621

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050591
B054001
C052211
D0169951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2419100.413394%
B2419411.694915%
C2419431.777594%
D2419151762.711864%

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 3304 2420 0 0 0.00% 0.00%
B 3304 2420 9 9 0.27% 0.37%
C 3304 2420 1 1 0.03% 0.04%
D 3304 2419 1483 1483 44.88% 61.31%

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 1 113 10643 157.17 318 311 65.7
A 13 254 5605 80.53 318 311 65.7
A 3 137 3103 42.47 318 311 65.7
B 10 245 44926 716.18 319 311 62.3
B 5 172 13953 218.99 319 311 62.3
B 4 171 10495 163.48 319 311 62.3
C 14 238 49662 671.76 307 309 73.5
C 3 233 31715 427.48 307 309 73.5
C 4 175 10235 135.11 307 309 73.5
D 12 33 3364290 64501.82 208 202 52.2
D 1 52 480395 9207.05 208 202 52.2
D 7 80 446064 8548.8 208 202 52.2

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