ASTROSAT CZTI

Data Quality Report

Orbit 37598

Creation date: 2024-06-27T21:42:01.155231
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/AS1T05_053T01_9000005338_37598cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37598cztM0_level2_quad_clean.evt
Size (bytes)449,452,80073,327,680
Size428.6 MB 69.9 MB
Events in quadrant A2,940,465457,940
Events in quadrant B3,329,737456,426
Events in quadrant C3,038,727463,738
Events in quadrant D3,904,182432,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122363
B0136612
C0125342
D0156332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5870120.204429%
B58701422.419080%
C5870410.698467%
D58703736.354344%

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 7211 5869 2 2 0.03% 0.03%
B 7211 5869 114 114 1.58% 1.94%
C 7211 5869 32 32 0.44% 0.55%
D 7211 5870 357 357 4.95% 6.08%

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 340639 2507.11 661 646 135.6
A 9 143 20554 146.8 661 646 135.6
A 13 6 11519 80.18 661 646 135.6
B 5 172 309078 2441.91 655 639 126.3
B 5 255 192629 1519.98 655 639 126.3
B 5 200 67470 529.1 655 639 126.3
C 15 214 257211 1709.98 645 651 150.0
C 0 10 129879 861.31 645 651 150.0
C 12 249 95504 632.2 645 651 150.0
D 2 250 615684 3992.59 622 601 154.1
D 10 253 257713 1668.95 622 601 154.1
D 2 249 210005 1359.27 622 601 154.1

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