ASTROSAT CZTI

Data Quality Report

Orbit 43008

Creation date: 2024-06-27T22:46:50.352854
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/AS1T05_148T01_9000005838_43008cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43008cztM0_level2_quad_clean.evt
Size (bytes)368,176,320116,979,840
Size351.1 MB 111.6 MB
Events in quadrant A3,408,418827,075
Events in quadrant B3,395,900837,478
Events in quadrant C2,935,738796,973
Events in quadrant D3,481,596714,216

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135542
B0132902
C0118032
D0137002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5238611.164567%
B5238210.400916%
C5238280.534555%
D5238911.737304%

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 7092 5240 42 42 0.59% 0.80%
B 7092 5240 6 6 0.08% 0.11%
C 7092 5240 20 20 0.28% 0.38%
D 7092 5240 82 82 1.16% 1.56%

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 10 83 583306 3859.91 682 671 150.9
A 15 237 148094 976.66 682 671 150.9
A 13 248 37986 247.21 682 671 150.9
B 0 186 627844 4378.55 673 658 143.2
B 4 171 99354 689.02 673 658 143.2
B 12 111 14703 98.05 673 658 143.2
C 15 214 217124 1288.67 657 663 168.0
C 0 239 97976 579.34 657 663 168.0
C 12 249 45528 267.1 657 663 168.0
D 1 52 518804 2994.58 654 634 173.0
D 1 47 158813 914.14 654 634 173.0
D 13 249 125171 719.72 654 634 173.0

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