ASTROSAT CZTI

Data Quality Report

Orbit 07723

Creation date: 2024-06-27T15:23:09.469154
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/AS1G06_064T01_9000001066_07723cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07723cztM0_level2_quad_clean.evt
Size (bytes)894,182,400174,159,360
Size852.8 MB 166.1 MB
Events in quadrant A6,156,9531,106,172
Events in quadrant B6,376,8511,118,272
Events in quadrant C6,047,6871,086,969
Events in quadrant D7,593,4431,040,171

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273784
B0278383
C0271663
D0316623

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13364730.546244%
B13364800.598623%
C13364230.172104%
D133645684.250224%

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 15354 13367 10 10 0.07% 0.07%
B 15354 13367 3 3 0.02% 0.02%
C 15354 13367 0 0 0.00% 0.00%
D 15354 13366 487 487 3.17% 3.64%

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 15 234 63143 193.16 1569 1531 319.0
A 13 251 25924 76.48 1569 1531 319.0
A 3 1 17592 50.35 1569 1531 319.0
B 0 229 64489 209.33 1584 1543 300.7
B 0 214 42039 134.67 1584 1543 300.7
B 0 219 29977 94.56 1584 1543 300.7
C 9 68 75294 208.9 1522 1529 353.1
C 8 128 14004 35.33 1522 1529 353.1
C 12 4 11718 28.86 1522 1529 353.1
D 12 221 1208172 3337.26 1472 1426 361.6
D 13 104 279233 768.28 1472 1426 361.6
D 8 195 246108 676.67 1472 1426 361.6

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