ASTROSAT CZTI

Data Quality Report

Orbit 19714

Creation date: 2024-06-27T18:05:54.526214
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/AS1A05_013T01_9000002944_19714cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19714cztM0_level2_quad_clean.evt
Size (bytes)446,581,44094,386,240
Size425.9 MB 90.0 MB
Events in quadrant A3,097,677613,319
Events in quadrant B3,447,570638,780
Events in quadrant C3,346,842600,606
Events in quadrant D3,216,681578,205

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128702
B0138992
C0135212
D0134712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6125200.326531%
B6125931.518367%
C6125641.044898%
D6125420.685714%

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 7530 6126 0 0 0.00% 0.00%
B 7530 6126 43 43 0.57% 0.70%
C 7530 6126 1 1 0.01% 0.02%
D 7530 6126 20 20 0.27% 0.33%

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 17712 106.0 799 785 159.7
A 0 226 7022 39.06 799 785 159.7
A 3 137 6064 33.06 799 785 159.7
B 3 64 202252 1348.49 808 789 149.4
B 7 220 25729 166.94 808 789 149.4
B 0 197 19252 123.58 808 789 149.4
C 14 238 125038 699.52 776 785 177.6
C 3 233 94817 529.38 776 785 177.6
C 9 54 56434 313.29 776 785 177.6
D 1 52 99528 527.8 775 753 187.1
D 12 218 83944 444.53 775 753 187.1
D 12 225 61750 325.93 775 753 187.1

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