ASTROSAT CZTI

Data Quality Report

Orbit 20231201_A13_047T01_9000005970_level2

Creation date: 2023-12-05T13:51:02.070110
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/AS1A13_047T01_9000005970cztM0_level2.fits modeM0/AS1A13_047T01_9000005970cztM0_level2_quad_clean.evt
Size (bytes)336,070,080294,379,200
Size320.5 MB 280.7 MB
Events in quadrant A1,885,4401,550,676
Events in quadrant B1,945,9401,694,766
Events in quadrant C2,045,9141,641,126
Events in quadrant D1,703,0601,434,576

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07640
B07640
C07640
D07640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0770
B0770
C0770
D0770

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01846860
B0938080
C0821640
D01087770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37768711318.833404%
B3776820865.523194%
C377684211.114700%
D3776820245.359034%

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 45193 37754 0 0 0.00% 0.00%
B 45193 37722 0 0 0.00% 0.00%
C 45193 37768 0 0 0.00% 0.00%
D 45193 37733 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 7 110 1592 8.95 491 460 126.4
A 15 236 1489 8.14 491 460 126.4
A 0 29 1481 8.07 491 460 126.4
B 2 9 1759 12.01 514 489 105.8
B 2 8 1430 8.9 514 489 105.8
B 3 17 1363 8.26 514 489 105.8
C 1 81 1540 7.29 539 500 142.7
C 3 202 1521 7.15 539 500 142.7
C 3 203 1495 6.97 539 500 142.7
D 10 189 1239 5.82 488 444 136.7
D 7 3 1230 5.75 488 444 136.7
D 1 31 1218 5.66 488 444 136.7

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