ASTROSAT CZTI

Data Quality Report

Orbit 38206

Creation date: 2024-06-27T21:49:45.451054
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/AS1A07_145T01_9000005370_38206cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38206cztM0_level2_quad_clean.evt
Size (bytes)590,952,960168,526,080
Size563.6 MB 160.7 MB
Events in quadrant A5,120,7841,143,879
Events in quadrant B4,583,0771,163,319
Events in quadrant C4,787,2681,106,344
Events in quadrant D6,605,215994,501

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02042
B02040
C02040
D02040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209683
B0204892
C0205104
D0263366

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10032160.159490%
B10032200.199362%
C10031100.099691%
D100304824.805583%

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 12926 10034 3 3 0.02% 0.03%
B 12926 10034 15 15 0.12% 0.15%
C 12926 10034 1 1 0.01% 0.01%
D 12926 10034 418 418 3.23% 4.17%

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 586009 2574.65 1123 1099 227.2
A 12 189 92826 403.76 1123 1099 227.2
A 15 223 44323 190.26 1123 1099 227.2
B 15 85 100121 465.62 1116 1086 212.7
B 5 172 40912 187.24 1116 1086 212.7
B 0 230 28272 127.82 1116 1086 212.7
C 15 214 408089 1605.2 1091 1099 253.5
C 14 254 60704 235.09 1091 1099 253.5
C 2 16 38344 146.9 1091 1099 253.5
D 13 171 1666965 6342.4 1080 1049 262.7
D 10 118 255315 968.03 1080 1049 262.7
D 2 16 141523 534.8 1080 1049 262.7

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