ASTROSAT CZTI

Data Quality Report

Orbit 41054

Creation date: 2024-06-27T22:23:45.309131
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/AS1A12_029T02_9000005590_41054cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41054cztM0_level2_quad_clean.evt
Size (bytes)321,652,80095,140,800
Size306.8 MB 90.7 MB
Events in quadrant A2,970,694655,596
Events in quadrant B2,644,249667,703
Events in quadrant C2,762,643622,548
Events in quadrant D3,130,660577,001

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119533
B0109062
C0109932
D0125062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5114130.254204%
B5114420.821275%
C5114521.016817%
D5114430.840829%

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 7207 5115 3 3 0.04% 0.06%
B 7207 5115 25 25 0.35% 0.49%
C 7207 5115 50 50 0.69% 0.98%
D 7207 5115 37 37 0.51% 0.72%

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 483558 3845.75 620 608 125.6
A 12 189 83866 662.98 620 608 125.6
A 13 254 8123 59.84 620 608 125.6
B 0 190 163750 1400.83 612 596 116.5
B 4 81 54003 458.55 612 596 116.5
B 0 229 14846 122.35 612 596 116.5
C 15 214 236555 1696.9 600 606 139.0
C 0 10 155589 1114.61 600 606 139.0
C 14 254 27578 193.98 600 606 139.0
D 13 249 327972 2247.08 602 587 145.7
D 12 79 317027 2171.96 602 587 145.7
D 13 171 59704 405.76 602 587 145.7

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