ASTROSAT CZTI

Data Quality Report

Orbit 37005

Creation date: 2024-06-27T21:34:09.553412
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/AS1C07_015T01_9000005256_37005cztM0_level2.evt modeM0/AS1C07_015T01_9000005256_37005cztM0_level2_quad_clean.evt
Size (bytes)467,752,320107,118,720
Size446.1 MB 102.2 MB
Events in quadrant A3,098,102705,807
Events in quadrant B3,353,570709,423
Events in quadrant C3,170,763706,247
Events in quadrant D4,104,372671,819

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134203
B0143622
C0135492
D0168782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A646260.092851%
B6462630.974930%
C6462190.294027%
D64621842.847416%

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 9088 6464 0 0 0.00% 0.00%
B 9088 6464 39 39 0.43% 0.60%
C 9088 6464 12 12 0.13% 0.19%
D 9088 6464 165 165 1.82% 2.55%

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 256347 1764.18 714 700 144.9
A 15 174 38796 262.89 714 700 144.9
A 13 6 13111 85.65 714 700 144.9
B 5 184 150265 1095.78 710 689 136.5
B 5 172 131093 955.33 710 689 136.5
B 0 213 113580 827.03 710 689 136.5
C 15 214 277815 1704.69 697 702 162.6
C 0 10 69008 420.19 697 702 162.6
C 14 254 44797 271.25 697 702 162.6
D 2 153 509561 3018.84 693 673 168.6
D 1 52 399172 2363.99 693 673 168.6
D 2 250 161884 956.34 693 673 168.6

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