ASTROSAT CZTI

Data Quality Report

Orbit 08586

Creation date: 2024-06-27T15:34:38.721505
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/AS1A03_102T01_9000001202_08586cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08586cztM0_level2_quad_clean.evt
Size (bytes)452,753,280106,724,160
Size431.8 MB 101.8 MB
Events in quadrant A3,587,201676,324
Events in quadrant B3,410,540705,863
Events in quadrant C3,084,014690,083
Events in quadrant D3,146,136664,823

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158462
B0149791
C0144971
D0147811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71082733.840743%
B71081732.433877%
C71081131.589758%
D71081101.547552%

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 7618 7108 99 99 1.30% 1.39%
B 7618 7108 5 5 0.07% 0.07%
C 7618 7108 1 1 0.01% 0.01%
D 7618 7108 4 4 0.05% 0.06%

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 15 223 327569 2014.35 794 777 162.2
A 15 239 162408 996.3 794 777 162.2
A 15 255 21760 129.34 794 777 162.2
B 0 214 84653 541.21 813 790 155.0
B 11 51 54736 348.14 813 790 155.0
B 0 230 20558 127.57 813 790 155.0
C 9 54 15240 79.73 786 786 181.3
C 13 61 6018 28.86 786 786 181.3
C 8 222 4020 17.84 786 786 181.3
D 7 71 51842 257.91 777 755 198.1
D 12 233 36544 180.68 777 755 198.1
D 1 52 34709 171.41 777 755 198.1

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