ASTROSAT CZTI

Data Quality Report

Orbit 22098

Creation date: 2024-06-27T18:36:22.774241
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/AS1A07_007T05_9000003274_22098cztM0_level2.evt modeM0/AS1A07_007T05_9000003274_22098cztM0_level2_quad_clean.evt
Size (bytes)462,139,20082,376,640
Size440.7 MB 78.6 MB
Events in quadrant A3,108,538520,262
Events in quadrant B3,214,172532,133
Events in quadrant C3,141,823504,122
Events in quadrant D4,084,550479,376

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133942
B0136312
C0134562
D0166882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A658060.091185%
B6580210.319149%
C6579500.759994%
D65792393.632771%

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 7650 6581 0 0 0.00% 0.00%
B 7650 6581 0 0 0.00% 0.00%
C 7649 6580 0 0 0.00% 0.00%
D 7649 6580 222 222 2.90% 3.37%

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 5 16 11028 63.57 802 784 161.1
A 13 254 10499 60.29 802 784 161.1
A 0 226 6933 38.16 802 784 161.1
B 0 197 47587 307.22 803 782 152.3
B 12 111 18756 117.98 803 782 152.3
B 11 111 16582 103.71 803 782 152.3
C 14 238 120949 666.43 770 778 180.3
C 10 22 14635 76.85 770 778 180.3
C 13 61 5380 25.52 770 778 180.3
D 1 52 580029 3119.77 766 744 185.7
D 2 136 226123 1213.79 766 744 185.7
D 13 172 208785 1120.42 766 744 185.7

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