ASTROSAT CZTI

Data Quality Report

Orbit 29024

Creation date: 2024-06-27T19:59:19.638796
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_123T02_9000004160_29024cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29024cztM0_level2_quad_clean.evt
Size (bytes)477,884,16093,551,040
Size455.7 MB 89.2 MB
Events in quadrant A3,022,493609,954
Events in quadrant B3,101,037637,119
Events in quadrant C3,117,996598,629
Events in quadrant D4,803,040547,049

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130852
B0131782
C0132312
D0185182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6307150.237831%
B6307190.301253%
C6307460.729348%
D63073816.040907%

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 7537 6308 0 0 0.00% 0.00%
B 7537 6308 0 0 0.00% 0.00%
C 7537 6308 0 0 0.00% 0.00%
D 7537 6308 320 320 4.25% 5.07%

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 13 254 10495 63.03 781 768 154.3
A 15 174 8766 51.83 781 768 154.3
A 3 137 7478 43.48 781 768 154.3
B 12 111 17806 115.88 785 767 147.0
B 11 111 16515 107.1 785 767 147.0
B 14 111 15783 102.12 785 767 147.0
C 14 238 123976 693.33 760 765 177.7
C 2 114 14719 78.52 760 765 177.7
C 2 16 9766 50.65 760 765 177.7
D 1 52 1104822 6360.97 734 714 173.6
D 7 80 698264 4018.72 734 714 173.6
D 8 195 224005 1286.42 734 714 173.6

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