ASTROSAT CZTI

Data Quality Report

Orbit 10802

Creation date: 2024-06-27T16:04:05.691148
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/AS1A03_071T01_9000001562_10802cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10802cztM0_level2_quad_clean.evt
Size (bytes)19,808,6405,745,600
Size18.9 MB 5.5 MB
Events in quadrant A159,68339,107
Events in quadrant B111,16023,526
Events in quadrant C164,40143,746
Events in quadrant D139,49236,724

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098
B0107
C01010
D097

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02174821063
B03615435701
C01866717918
D02321622571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181173
B0189177
C0188182
D0188182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33600.000000%
B19710.507614%
C37200.000000%
D31900.000000%

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 6467 596 0 0 0.00% 0.00%
B 6246 357 0 0 0.00% 0.00%
C 6828 663 0 0 0.00% 0.00%
D 6388 574 0 0 0.00% 0.00%

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 8 5 8424 848.43 38 37 9.9
A 13 251 2036 202.22 38 37 9.9
A 15 174 609 57.86 38 37 9.9
B 4 239 12532 1991.02 22 21 6.3
B 4 81 6188 981.43 22 21 6.3
B 15 204 2350 370.64 22 21 6.3
C 13 61 319 23.57 42 42 11.8
C 7 247 143 8.59 42 42 11.8
C 8 222 112 5.96 42 42 11.8
D 13 138 3052 288.56 35 34 10.5
D 2 234 1410 131.56 35 34 10.5
D 8 195 1370 127.74 35 34 10.5

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