ASTROSAT CZTI

Data Quality Report

Orbit 07040

Creation date: 2024-06-27T15:14:49.450358
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_029T01_9000000964_07040cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07040cztM0_level2_quad_clean.evt
Size (bytes)430,882,56082,160,640
Size410.9 MB 78.4 MB
Events in quadrant A2,863,984525,139
Events in quadrant B3,265,850522,671
Events in quadrant C2,830,973521,882
Events in quadrant D3,673,131491,747

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126222
B0136191
C0125581
D0147131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6109691.129481%
B61091522.488132%
C6109280.458340%
D61091502.455394%

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 6494 6110 0 0 0.00% 0.00%
B 6494 6110 89 89 1.37% 1.46%
C 6494 6110 0 0 0.00% 0.00%
D 6494 6110 84 84 1.29% 1.37%

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 7338 43.24 740 725 152.9
A 0 226 7141 41.96 740 725 152.9
A 13 14 6952 40.72 740 725 152.9
B 4 80 180561 1262.58 739 725 142.4
B 0 214 84981 591.54 739 725 142.4
B 0 228 80038 556.83 739 725 142.4
C 8 128 11464 63.91 715 722 168.1
C 1 16 10164 56.18 715 722 168.1
C 12 4 6273 33.03 715 722 168.1
D 2 216 467650 2614.0 713 691 178.6
D 8 195 285206 1592.69 713 691 178.6
D 12 233 115768 644.19 713 691 178.6

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