ASTROSAT CZTI

Data Quality Report

Orbit 30342

Creation date: 2024-06-27T20:13:59.665688
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_053T14_9000004362_30342cztM0_level2.evt modeM0/AS1A10_053T14_9000004362_30342cztM0_level2_quad_clean.evt
Size (bytes)585,656,640103,141,440
Size558.5 MB 98.4 MB
Events in quadrant A3,323,630684,623
Events in quadrant B5,288,436684,351
Events in quadrant C3,622,909662,560
Events in quadrant D5,050,357627,450

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138932
B0202692
C0146302
D0192432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6668490.734853%
B66671542.309885%
C66671592.384881%
D666768610.289486%

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 7658 6669 0 0 0.00% 0.00%
B 7657 6668 10 10 0.13% 0.15%
C 7657 6668 0 0 0.00% 0.00%
D 7657 6668 653 653 8.53% 9.79%

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 8 192 22153 124.97 856 841 170.5
A 13 254 12280 67.07 856 841 170.5
A 3 137 8361 44.1 856 841 170.5
B 6 159 1909618 11931.77 847 826 160.0
B 5 172 26798 162.35 847 826 160.0
B 12 111 19402 116.12 847 826 160.0
C 3 233 200139 1022.4 831 837 194.9
C 14 238 146717 748.35 831 837 194.9
C 14 254 18071 88.41 831 837 194.9
D 1 52 1395364 7257.97 816 797 192.1
D 12 233 211876 1098.55 816 797 192.1
D 2 250 154051 797.6 816 797 192.1

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