ASTROSAT CZTI

Data Quality Report

Orbit 13934

Creation date: 2024-06-27T16:48:08.686039
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/AS1T02_041T01_9000002058_13934cztM0_level2.evt modeM0/AS1T02_041T01_9000002058_13934cztM0_level2_quad_clean.evt
Size (bytes)578,995,20094,216,320
Size552.2 MB 89.9 MB
Events in quadrant A3,131,206605,320
Events in quadrant B3,424,497609,106
Events in quadrant C3,928,355608,244
Events in quadrant D6,605,176571,505

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136873
B0144392
C0157682
D0241712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6579721.094391%
B65791011.535188%
C65792553.875969%
D65796219.439124%

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 7625 6580 0 0 0.00% 0.00%
B 7625 6580 12 12 0.16% 0.18%
C 7625 6580 155 155 2.03% 2.36%
D 7625 6580 551 551 7.23% 8.37%

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 27730 165.97 801 783 162.4
A 1 178 10230 58.18 801 783 162.4
A 1 161 8766 49.17 801 783 162.4
B 0 230 127349 840.67 798 778 150.6
B 3 64 56998 373.41 798 778 150.6
B 0 189 30141 195.03 798 778 150.6
C 4 254 710518 3993.74 774 778 177.7
C 3 233 186947 1047.58 774 778 177.7
C 12 4 6867 34.26 774 778 177.7
D 1 52 2662278 14785.77 761 741 180.0
D 15 0 348308 1930.86 761 741 180.0
D 12 110 334734 1855.45 761 741 180.0

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