ASTROSAT CZTI

Data Quality Report

Orbit 14434

Creation date: 2024-06-27T16:55:07.963253
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/AS1G08_025T01_9000002130_14434cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14434cztM0_level2_quad_clean.evt
Size (bytes)557,818,56090,858,240
Size532.0 MB 86.6 MB
Events in quadrant A3,293,887582,592
Events in quadrant B3,336,605582,989
Events in quadrant C3,551,921573,374
Events in quadrant D6,253,405541,866

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141352
B0143061
C0146511
D0234521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67481031.526378%
B6748891.318909%
C6748480.711322%
D674884312.492590%

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 7229 6749 0 0 0.00% 0.00%
B 7229 6749 2 2 0.03% 0.03%
C 7229 6749 3 3 0.04% 0.04%
D 7229 6749 752 752 10.40% 11.14%

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 12 189 96135 576.06 806 787 165.5
A 8 15 91615 548.75 806 787 165.5
A 0 226 7327 39.51 806 787 165.5
B 0 219 79008 511.83 799 779 152.8
B 3 209 50495 325.28 799 779 152.8
B 0 189 31517 201.11 799 779 152.8
C 3 233 522569 2914.77 772 773 179.0
C 14 234 7047 35.05 772 773 179.0
C 0 207 5636 27.16 772 773 179.0
D 13 122 2932299 16472.52 748 731 178.0
D 2 120 385348 2161.17 748 731 178.0
D 12 110 57062 316.52 748 731 178.0

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