ASTROSAT CZTI

Data Quality Report

Orbit 10537

Creation date: 2024-06-27T16:00:41.012824
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/AS1G07_079T01_9000001528_10537cztM0_level2.evt modeM0/AS1G07_079T01_9000001528_10537cztM0_level2_quad_clean.evt
Size (bytes)297,668,16048,055,680
Size283.9 MB 45.8 MB
Events in quadrant A1,820,000294,380
Events in quadrant B2,470,630306,828
Events in quadrant C1,779,739303,997
Events in quadrant D2,683,369279,303

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079552
B099321
C078981
D0106241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3827140.365822%
B38271523.971779%
C3827150.391952%
D38271483.867259%

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 5122 3828 0 0 0.00% 0.00%
B 5122 3828 71 71 1.39% 1.85%
C 5122 3828 0 0 0.00% 0.00%
D 5122 3828 92 92 1.80% 2.40%

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 1 162 10369 103.5 463 453 95.8
A 13 251 9370 93.08 463 453 95.8
A 8 5 8233 81.21 463 453 95.8
B 4 239 482443 5440.8 465 456 88.6
B 0 214 78225 877.88 465 456 88.6
B 11 51 74852 839.8 465 456 88.6
C 14 234 7753 68.43 454 455 106.7
C 13 61 3426 27.86 454 455 106.7
C 8 222 1863 13.2 454 455 106.7
D 1 52 311124 2911.52 442 429 106.7
D 1 20 282368 2642.04 442 429 106.7
D 8 195 218131 2040.08 442 429 106.7

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