ASTROSAT CZTI

Data Quality Report

Orbit 51133

Creation date: 2025-03-13T08:09:06.455188
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_001T02_9000006452_51133cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51133cztM0_level2_quad_clean.evt
Size (bytes)46,684,8007,580,160
Size44.5 MB 7.2 MB
Events in quadrant A530,35246,400
Events in quadrant B320,80851,347
Events in quadrant C536,61443,619
Events in quadrant D295,63643,893

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C091
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197831
B013255
C0199916
D012807

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527122.277040%
B534193.558052%
C5346612.359551%
D53340.750469%

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 537 535 9 9 1.68% 1.68%
B 537 536 16 16 2.98% 2.99%
C 537 537 70 70 13.04% 13.04%
D 537 536 4 4 0.74% 0.75%

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 12 3 277754 19728.63 50 49 14.1
A 12 194 30559 2167.48 50 49 14.1
A 4 3 6578 463.83 50 49 14.1
B 0 171 48865 3855.12 50 49 12.7
B 4 206 39399 3107.57 50 49 12.7
B 6 51 12275 965.52 50 49 12.7
C 4 12 201394 13503.21 47 46 14.9
C 15 230 102044 6840.4 47 46 14.9
C 13 3 11364 759.03 47 46 14.9
D 3 12 40068 2706.46 47 46 14.8
D 15 154 24741 1669.98 47 46 14.8
D 6 42 22265 1502.55 47 46 14.8

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