ASTROSAT CZTI

Data Quality Report

Orbit 43022

Creation date: 2024-06-27T22:47:01.213891
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/AS1T05_148T01_9000005838_43022cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43022cztM0_level2_quad_clean.evt
Size (bytes)419,512,320107,398,080
Size400.1 MB 102.4 MB
Events in quadrant A3,270,084779,154
Events in quadrant B3,271,732771,280
Events in quadrant C2,756,475751,212
Events in quadrant D5,818,084578,743

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129012
B0128782
C0110772
D0207142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5306370.697324%
B53061903.580852%
C530660.113080%
D530694217.753487%

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 7068 5307 22 22 0.31% 0.41%
B 7068 5307 107 107 1.51% 2.02%
C 7068 5307 0 0 0.00% 0.00%
D 7068 5307 900 900 12.73% 16.96%

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 586259 3986.06 666 657 146.9
A 15 237 82704 558.48 666 657 146.9
A 13 248 23742 157.13 666 657 146.9
B 3 112 581180 4299.91 649 635 135.0
B 0 189 63774 467.65 649 635 135.0
B 4 81 58233 426.61 649 635 135.0
C 15 214 234313 1448.37 645 651 161.3
C 15 111 6794 38.08 645 651 161.3
C 13 61 4263 22.39 645 651 161.3
D 1 52 2305352 14897.21 596 580 154.7
D 13 249 942942 6091.09 596 580 154.7
D 12 233 121668 782.67 596 580 154.7

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