ASTROSAT CZTI

Data Quality Report

Orbit 38229

Creation date: 2024-06-27T21:50:01.329164
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/AS1A07_145T01_9000005370_38229cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38229cztM0_level2_quad_clean.evt
Size (bytes)328,752,00093,911,040
Size313.5 MB 89.6 MB
Events in quadrant A2,849,859629,411
Events in quadrant B2,659,747655,084
Events in quadrant C3,123,571630,413
Events in quadrant D3,145,050576,705

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114823
B0110622
C0125142
D0126752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5024390.776274%
B5024430.855892%
C5024170.338376%
D5024500.995223%

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 7027 5025 28 28 0.40% 0.56%
B 7027 5025 28 28 0.40% 0.56%
C 7027 5025 15 15 0.21% 0.30%
D 7027 5025 45 45 0.64% 0.90%

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 10 83 371239 3114.87 590 579 119.0
A 9 143 138258 1157.0 590 579 119.0
A 12 189 22627 185.28 590 579 119.0
B 5 172 197244 1724.83 596 579 114.0
B 4 141 64441 560.1 596 579 114.0
B 5 184 30292 260.6 596 579 114.0
C 3 9 519281 3792.67 591 594 136.8
C 15 214 208798 1522.4 591 594 136.8
C 0 10 37941 273.08 591 594 136.8
D 10 203 311308 2209.75 584 570 140.6
D 7 55 124716 882.84 584 570 140.6
D 7 223 114540 810.47 584 570 140.6

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