ASTROSAT CZTI

Data Quality Report

Orbit 14893

Creation date: 2024-06-27T17:00:59.984068
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/AS1T02_054T01_9000002200_14893cztM0_level2.evt modeM0/AS1T02_054T01_9000002200_14893cztM0_level2_quad_clean.evt
Size (bytes)463,288,320107,000,640
Size441.8 MB 102.0 MB
Events in quadrant A2,991,248711,344
Events in quadrant B3,496,275710,509
Events in quadrant C2,975,538720,259
Events in quadrant D4,176,835696,062

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123970
B0138890
C0122460
D0159960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5762540.937175%
B57631763.053965%
C5763410.711435%
D57622854.946199%

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 7052 5763 10 10 0.14% 0.17%
B 7053 5764 100 100 1.42% 1.73%
C 7053 5764 0 0 0.00% 0.00%
D 7052 5763 225 225 3.19% 3.90%

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 11 29 99384 657.39 743 728 150.1
A 9 143 13260 83.51 743 728 150.1
A 14 237 12651 79.45 743 728 150.1
B 3 64 416443 3150.89 724 707 131.9
B 0 229 85833 645.18 724 707 131.9
B 0 189 85193 640.33 724 707 131.9
C 3 233 131933 796.41 726 730 164.7
C 0 207 5884 31.28 726 730 164.7
C 3 232 5582 29.45 726 730 164.7
D 7 254 1346243 7928.16 721 706 169.7
D 10 199 45923 266.43 721 706 169.7
D 2 234 21033 119.77 721 706 169.7

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