ASTROSAT CZTI

Data Quality Report

Orbit 29558

Creation date: 2024-06-27T20:05:28.636887
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/AS1C05_019T01_9000004264_29558cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29558cztM0_level2_quad_clean.evt
Size (bytes)522,472,320119,897,280
Size498.3 MB 114.3 MB
Events in quadrant A3,182,737803,178
Events in quadrant B4,269,551832,613
Events in quadrant C3,258,660798,967
Events in quadrant D4,676,376748,097

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135172
B0167922
C0137302
D0182512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6432120.186567%
B6432490.761816%
C6432861.337065%
D64323705.752488%

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 7832 6434 0 0 0.00% 0.00%
B 7832 6434 4 4 0.05% 0.06%
C 7832 6434 0 0 0.00% 0.00%
D 7832 6434 222 222 2.83% 3.45%

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 0 13 30606 185.65 816 804 160.5
A 13 254 12098 70.35 816 804 160.5
A 3 137 7480 41.59 816 804 160.5
B 0 189 1020775 6799.84 824 804 150.0
B 12 111 17898 113.96 824 804 150.0
B 11 111 15834 100.2 824 804 150.0
C 14 238 143525 794.5 789 795 179.6
C 14 254 20509 109.73 789 795 179.6
C 2 114 14443 75.97 789 795 179.6
D 13 172 574140 3179.34 767 747 180.3
D 8 195 422706 2339.67 767 747 180.3
D 12 33 327709 1812.93 767 747 180.3

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