ASTROSAT CZTI

Data Quality Report

Orbit 38052

Creation date: 2024-06-27T21:47:49.786297
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/AS1A11_044T01_9000005360_38052cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38052cztM0_level2_quad_clean.evt
Size (bytes)333,031,68095,846,400
Size317.6 MB 91.4 MB
Events in quadrant A2,871,931647,427
Events in quadrant B3,173,114654,825
Events in quadrant C2,724,240637,542
Events in quadrant D3,129,794576,783

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119983
B0131622
C0114042
D0129612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5503210.381610%
B55031512.743958%
C5503110.199891%
D55031242.253316%

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 7206 5504 6 6 0.08% 0.11%
B 7206 5504 93 93 1.29% 1.69%
C 7206 5504 5 5 0.07% 0.09%
D 7206 5504 99 99 1.37% 1.80%

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 391733 3110.36 625 614 125.7
A 12 189 15208 116.06 625 614 125.7
A 13 6 14397 109.61 625 614 125.7
B 5 184 435574 3684.26 623 607 118.1
B 4 171 106339 895.57 623 607 118.1
B 5 172 73837 620.27 623 607 118.1
C 15 214 230303 1601.66 615 619 143.4
C 3 233 52592 362.42 615 619 143.4
C 0 10 22490 152.51 615 619 143.4
D 13 249 222431 1511.1 604 586 146.8
D 12 233 176368 1197.34 604 586 146.8
D 1 52 72908 492.62 604 586 146.8

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