ASTROSAT CZTI

Data Quality Report

Orbit 04299

Creation date: 2024-06-27T14:40:05.485289
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/AS1G05_219T01_9000000540_04299cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04299cztM0_level2_quad_clean.evt
Size (bytes)495,924,48074,373,120
Size473.0 MB 70.9 MB
Events in quadrant A3,167,062483,740
Events in quadrant B4,052,374472,972
Events in quadrant C3,952,880432,788
Events in quadrant D3,450,379454,178

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133012
B0158871
C0158685
D0142961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58281903.260124%
B58522684.579631%
C582967211.528564%
D58292153.688454%

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 7132 5829 94 94 1.32% 1.61%
B 7132 5852 196 196 2.75% 3.35%
C 7132 5830 595 595 8.34% 10.21%
D 7132 5830 175 175 2.45% 3.00%

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 15 234 230105 1585.72 706 691 144.7
A 0 50 172668 1188.71 706 691 144.7
A 13 248 20687 138.21 706 691 144.7
B 14 167 1180282 8759.17 704 689 134.7
B 10 16 49282 360.83 704 689 134.7
B 15 204 26247 189.78 704 689 134.7
C 9 144 1348087 8960.46 642 645 150.4
C 14 67 51948 341.16 642 645 150.4
C 9 247 40495 265.0 642 645 150.4
D 9 35 344609 2100.24 679 658 163.8
D 2 232 152522 927.32 679 658 163.8
D 2 136 114171 693.14 679 658 163.8

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