ASTROSAT CZTI

Data Quality Report

Orbit 44869

Creation date: 2024-06-27T23:07:26.852778
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_017T01_9000006028_44869cztM0_level2.fits modeM0/AS1A13_017T01_9000006028_44869cztM0_level2_quad_clean.evt
Size (bytes)242,012,16046,048,320
Size230.8 MB 43.9 MB
Events in quadrant A2,225,873314,385
Events in quadrant B1,661,173321,654
Events in quadrant C1,427,088312,357
Events in quadrant D3,425,718246,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09465715
B07400578
C06585452
D0135821480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0624
B0624
C0613
D0613

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2796843.004292%
B28001184.214286%
C2815190.674956%
D276350918.422005%

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 3044 2836 0 0 0.00% 0.00%
B 3122 2835 27 27 0.86% 0.95%
C 3128 2853 0 0 0.00% 0.00%
D 3013 2805 267 267 8.86% 9.52%

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 859240 11519.37 347 337 74.6
A 7 3 11206 145.77 347 337 74.6
A 13 6 4645 57.78 347 337 74.6
B 5 255 133422 1856.28 348 336 71.7
B 0 186 58740 814.62 348 336 71.7
B 0 155 26673 367.35 348 336 71.7
C 12 2 22051 257.96 350 351 84.1
C 2 14 19124 223.16 350 351 84.1
C 3 233 8060 91.64 350 351 84.1
D 1 52 1002069 11941.83 321 309 83.9
D 13 174 508157 6053.98 321 309 83.9
D 5 235 291402 3470.08 321 309 83.9

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