ASTROSAT CZTI

Data Quality Report

Orbit 10077

Creation date: 2024-06-27T15:54:34.725158
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_044T03_9000001446_10077cztM0_level2.evt modeM0/AS1A03_044T03_9000001446_10077cztM0_level2_quad_clean.evt
Size (bytes)317,831,04063,377,280
Size303.1 MB 60.4 MB
Events in quadrant A2,096,360414,573
Events in quadrant B2,150,366415,881
Events in quadrant C2,010,826407,353
Events in quadrant D3,056,174360,193

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126093116
B0129733426
C0124673157
D0179655958

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012438
B012430
C012432
D012529

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109
B0107
C0108
D0109

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4656100.214777%
B4608160.347222%
C460670.151976%
D4355611.400689%

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 7053 5003 0 0 0.00% 0.00%
B 7054 4986 1 1 0.01% 0.02%
C 7050 4974 0 0 0.00% 0.00%
D 7053 4785 40 40 0.57% 0.84%

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 8 18785 168.07 532 522 108.7
A 8 15 18286 163.48 532 522 108.7
A 8 5 6818 57.94 532 522 108.7
B 0 214 22416 216.88 530 519 101.0
B 4 239 22386 216.58 530 519 101.0
B 4 81 18002 173.16 530 519 101.0
C 14 234 4642 34.7 512 514 119.0
C 13 61 3744 27.15 512 514 119.0
C 4 239 3675 26.57 512 514 119.0
D 2 16 525941 4197.88 475 464 125.2
D 8 195 359820 2870.79 475 464 125.2
D 2 152 96337 765.9 475 464 125.2

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