ASTROSAT CZTI

Data Quality Report

Orbit 47519

Creation date: 2024-07-11T23:33:38.989737
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/AS1C09_002T01_9000006334_47519cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47519cztM0_level2_quad_clean.evt
Size (bytes)463,501,440101,350,080
Size442.0 MB 96.7 MB
Events in quadrant A6,124,182680,850
Events in quadrant B4,332,058686,060
Events in quadrant C2,555,021677,384
Events in quadrant D3,695,204617,990

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220621
B0168821
C0118231
D0149591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58112584.439855%
B58122955.075705%
C5812100.172058%
D58121322.271163%

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 7071 5812 54 54 0.76% 0.93%
B 7072 5813 128 128 1.81% 2.20%
C 7072 5813 0 0 0.00% 0.00%
D 7072 5813 141 141 1.99% 2.43%

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 3418120 24998.93 665 651 136.7
A 9 191 101444 737.31 665 651 136.7
A 13 248 25882 184.57 665 651 136.7
B 5 172 542250 4321.92 658 640 125.3
B 5 32 499349 3979.58 658 640 125.3
B 5 171 266521 2121.67 658 640 125.3
C 1 3 5156 29.65 651 653 151.9
C 12 250 4738 26.9 651 653 151.9
C 13 61 4417 24.78 651 653 151.9
D 6 112 385849 2393.31 648 629 161.0
D 4 222 302082 1872.88 648 629 161.0
D 7 38 180216 1115.75 648 629 161.0

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