ASTROSAT CZTI

Data Quality Report

Orbit 47546

Creation date: 2024-07-13T19:06:14.489266
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/AS1C09_002T01_9000006334_47546cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47546cztM0_level2_quad_clean.evt
Size (bytes)544,248,000107,832,960
Size519.0 MB 102.8 MB
Events in quadrant A6,701,584730,954
Events in quadrant B3,017,101758,258
Events in quadrant C2,834,993731,677
Events in quadrant D7,102,627602,446

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247721
B0132571
C0129711
D0254271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63242664.206199%
B6325981.549407%
C6325560.885375%
D6324100515.891841%

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 7479 6324 36 36 0.48% 0.57%
B 7480 6325 5 5 0.07% 0.08%
C 7480 6325 0 0 0.00% 0.00%
D 7479 6324 828 828 11.07% 13.09%

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 3702868 24709.5 727 712 149.8
A 13 248 80357 531.58 727 712 149.8
A 9 191 75515 499.26 727 712 149.8
B 5 172 47683 333.97 728 708 140.7
B 4 158 19268 131.95 728 708 140.7
B 0 190 17489 119.3 728 708 140.7
C 1 3 31655 185.69 716 720 166.6
C 3 233 6719 36.01 716 720 166.6
C 14 254 5249 27.19 716 720 166.6
D 2 165 3851236 22588.82 689 666 170.5
D 2 249 219466 1283.56 689 666 170.5
D 12 2 135590 791.51 689 666 170.5

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