ASTROSAT CZTI

Data Quality Report

Orbit 29702

Creation date: 2024-06-27T20:06:59.232687
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/AS1A10_007T01_9000004276_29702cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29702cztM0_level2_quad_clean.evt
Size (bytes)1,437,301,440227,341,440
Size1.3 GB 216.8 MB
Events in quadrant A7,875,8951,487,004
Events in quadrant B13,032,3811,491,863
Events in quadrant C9,367,7391,449,030
Events in quadrant D12,222,7151,400,914

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03140
B03140
C03140
D03140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0331903
B0488676
C0373593
D0473723

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153101530.999347%
B153103992.606140%
C153116093.977532%
D153115253.428907%

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 19027 15311 0 0 0.00% 0.00%
B 19028 15312 61 61 0.32% 0.40%
C 19028 15313 88 88 0.46% 0.57%
D 19028 15312 368 368 1.93% 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 13 254 30155 69.79 2037 2001 403.4
A 3 137 19044 42.25 2037 2001 403.4
A 0 226 17400 38.17 2037 2001 403.4
B 6 159 4665670 12362.43 2019 1972 377.2
B 5 255 225825 593.38 2019 1972 377.2
B 0 229 95161 247.02 2019 1972 377.2
C 3 233 1149595 2561.61 1950 1973 448.0
C 14 238 364469 809.13 1950 1973 448.0
C 10 22 119100 261.44 1950 1973 448.0
D 7 80 2478482 5372.4 1955 1909 461.0
D 8 195 1660013 3596.91 1955 1909 461.0
D 2 250 293420 632.37 1955 1909 461.0

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