ASTROSAT CZTI

Data Quality Report

Orbit 32688

Creation date: 2024-06-27T20:40:50.296139
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/AS1A10_057T03_9000004722_32688cztM0_level2.evt modeM0/AS1A10_057T03_9000004722_32688cztM0_level2_quad_clean.evt
Size (bytes)535,086,72056,661,120
Size510.3 MB 54.0 MB
Events in quadrant A4,422,653340,513
Events in quadrant B2,728,712350,083
Events in quadrant C3,243,715340,966
Events in quadrant D5,454,176315,439

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166903
B0112522
C0130952
D0199482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A526158211.062536%
B5261190.361148%
C5261791.501616%
D526157710.967497%

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 7053 5262 171 171 2.42% 3.25%
B 7053 5262 8 8 0.11% 0.15%
C 7053 5262 69 69 0.98% 1.31%
D 7053 5262 466 466 6.61% 8.86%

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 15 249 1270924 10441.71 611 599 121.7
A 0 253 710639 5836.33 611 599 121.7
A 15 174 25993 208.73 611 599 121.7
B 0 219 65373 541.56 629 615 119.6
B 3 26 43938 362.3 629 615 119.6
B 0 189 37242 306.31 629 615 119.6
C 3 233 312473 2222.95 602 604 140.3
C 0 10 311536 2216.27 602 604 140.3
C 9 236 160719 1141.27 602 604 140.3
D 7 80 670801 4861.52 581 568 137.9
D 8 195 607901 4405.28 581 568 137.9
D 2 250 385091 2789.13 581 568 137.9

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