ASTROSAT CZTI

Data Quality Report

Orbit 07424

Creation date: 2024-06-27T15:19:35.418926
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/AS1A02_150T04_9000001022_07424cztM0_level2.evt modeM0/AS1A02_150T04_9000001022_07424cztM0_level2_quad_clean.evt
Size (bytes)455,339,52070,729,920
Size434.2 MB 67.5 MB
Events in quadrant A3,279,561424,309
Events in quadrant B3,228,103432,936
Events in quadrant C3,535,376436,149
Events in quadrant D3,329,497419,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138113
B0135522
C0145592
D0140872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61431252.034836%
B6143671.090672%
C6143570.927885%
D6143971.579033%

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 7418 6144 46 46 0.62% 0.75%
B 7418 6144 3 3 0.04% 0.05%
C 7418 6144 0 0 0.00% 0.00%
D 7418 6144 20 20 0.27% 0.33%

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 216413 1351.4 790 775 159.6
A 3 1 13449 79.43 790 775 159.6
A 0 226 7616 42.87 790 775 159.6
B 0 214 33266 216.83 802 786 149.8
B 4 81 32529 211.91 802 786 149.8
B 4 173 32345 210.68 802 786 149.8
C 9 68 464785 2573.12 786 792 180.3
C 13 61 6057 29.2 786 792 180.3
C 12 4 5211 24.51 786 792 180.3
D 2 14 96415 501.42 782 761 190.8
D 2 216 62475 323.5 782 761 190.8
D 13 105 48251 248.94 782 761 190.8

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