ASTROSAT CZTI

Data Quality Report

Orbit 30511

Creation date: 2024-06-27T20:16:14.735627
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/AS1C05_019T04_9000004388_30511cztM0_level2.evt modeM0/AS1C05_019T04_9000004388_30511cztM0_level2_quad_clean.evt
Size (bytes)550,756,80093,516,480
Size525.2 MB 89.2 MB
Events in quadrant A3,423,593621,317
Events in quadrant B5,306,981609,975
Events in quadrant C3,435,945583,406
Events in quadrant D4,078,152569,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143031
B0200491
C0141591
D0161011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6424961.494396%
B64251662.583658%
C64251882.926070%
D64252373.688716%

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 7569 6425 4 4 0.05% 0.06%
B 7570 6426 25 25 0.33% 0.39%
C 7570 6426 0 0 0.00% 0.00%
D 7570 6426 142 142 1.88% 2.21%

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 96 131141 779.74 845 831 167.1
A 8 192 12542 70.08 845 831 167.1
A 13 254 11669 64.85 845 831 167.1
B 6 159 1791485 11655.8 823 806 153.6
B 0 229 129993 840.9 823 806 153.6
B 0 155 78186 503.68 823 806 153.6
C 14 238 159641 883.7 789 793 179.8
C 10 22 64375 353.72 789 793 179.8
C 3 233 60423 331.73 789 793 179.8
D 13 249 251853 1325.17 803 784 189.5
D 8 195 251258 1322.03 803 784 189.5
D 12 218 130576 685.06 803 784 189.5

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