ASTROSAT CZTI

Data Quality Report

Orbit 25608

Creation date: 2024-06-27T19:19:29.461879
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/AS1A07_148T02_9000003728_25608cztM0_level2.evt modeM0/AS1A07_148T02_9000003728_25608cztM0_level2_quad_clean.evt
Size (bytes)561,703,68071,029,440
Size535.7 MB 67.7 MB
Events in quadrant A4,829,421426,070
Events in quadrant B3,639,125436,636
Events in quadrant C3,511,787410,351
Events in quadrant D4,566,123399,405

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201480
B0145320
C0143270
D0180510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6859981.428780%
B6859911.326724%
C68591251.822423%
D68591231.793264%

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 7860 6860 3 3 0.04% 0.04%
B 7860 6860 0 0 0.00% 0.00%
C 7860 6859 0 0 0.00% 0.00%
D 7860 6860 48 48 0.61% 0.70%

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 8 192 1230742 6834.43 898 884 180.0
A 6 16 89793 494.07 898 884 180.0
A 0 13 48042 262.06 898 884 180.0
B 0 219 77965 454.2 897 878 169.7
B 12 111 20880 117.85 897 878 169.7
B 0 245 20386 114.94 897 878 169.7
C 14 238 137761 676.53 859 865 202.4
C 3 233 26586 127.11 859 865 202.4
C 13 61 5972 25.24 859 865 202.4
D 1 52 731546 3464.74 863 838 210.9
D 12 2 178227 841.11 863 838 210.9
D 8 195 166127 783.74 863 838 210.9

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