ASTROSAT CZTI

Data Quality Report

Orbit 28064

Creation date: 2024-06-27T19:47:38.210066
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/AS1A10_057T02_9000004054_28064cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28064cztM0_level2_quad_clean.evt
Size (bytes)786,962,880117,429,120
Size750.5 MB 112.0 MB
Events in quadrant A4,592,357748,641
Events in quadrant B4,779,156754,251
Events in quadrant C4,531,927715,305
Events in quadrant D9,274,331666,022

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225
B0222
C0223
D0223

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197320
B0202940
C0196700
D0341650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9645490.508035%
B9648660.684080%
C9641950.985375%
D95347617.981959%

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 12898 9816 0 0 0.00% 0.00%
B 12898 9830 4 4 0.03% 0.04%
C 12898 9821 0 0 0.00% 0.00%
D 12898 9670 581 581 4.50% 6.01%

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 13 44967 187.52 1170 1150 233.7
A 13 254 15394 60.96 1170 1150 233.7
A 4 2 14381 56.62 1170 1150 233.7
B 10 245 203352 920.33 1154 1125 219.7
B 12 111 27244 118.87 1154 1125 219.7
B 11 111 24455 106.17 1154 1125 219.7
C 14 238 182921 706.11 1106 1112 257.5
C 3 233 35015 131.67 1106 1112 257.5
C 13 61 7567 25.07 1106 1112 257.5
D 8 195 3421760 13483.49 1077 1047 253.7
D 1 52 1223726 4819.46 1077 1047 253.7
D 2 250 403378 1585.88 1077 1047 253.7

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