ASTROSAT CZTI

Data Quality Report

Orbit 10101

Creation date: 2024-06-27T15:55:01.278439
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/AS1G07_072T01_9000001452_10101cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10101cztM0_level2_quad_clean.evt
Size (bytes)348,094,08087,117,120
Size332.0 MB 83.1 MB
Events in quadrant A2,398,797583,812
Events in quadrant B2,570,466588,082
Events in quadrant C2,333,468584,401
Events in quadrant D2,905,494538,971

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011312
B011416
C011317
D011416

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119181574
B0126041759
C0117581517
D0141542331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0131
C0131
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4915621.261445%
B4893621.267116%
C4935380.770010%
D4790831.732777%

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 6889 5449 0 0 0.00% 0.00%
B 6888 5430 0 0 0.00% 0.00%
C 6889 5464 0 0 0.00% 0.00%
D 6889 5407 30 30 0.44% 0.55%

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 15 174 6610 47.78 621 609 125.6
A 0 226 5872 41.9 621 609 125.6
A 12 194 5247 36.93 621 609 125.6
B 0 214 79214 671.46 615 603 117.1
B 0 219 41240 347.1 615 603 117.1
B 4 81 23727 197.51 615 603 117.1
C 14 67 6082 39.86 594 597 137.6
C 14 234 4542 28.67 594 597 137.6
C 13 61 4538 28.64 594 597 137.6
D 1 52 267233 1899.11 582 564 140.4
D 0 11 85810 607.09 582 564 140.4
D 13 104 70647 499.1 582 564 140.4

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