ASTROSAT CZTI

Data Quality Report

Orbit 17297

Creation date: 2024-06-27T17:34:41.377153
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/AS1A05_010T02_9000002556_17297cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17297cztM0_level2_quad_clean.evt
Size (bytes)521,392,320105,917,760
Size497.2 MB 101.0 MB
Events in quadrant A3,393,986722,164
Events in quadrant B3,243,106732,107
Events in quadrant C3,156,873675,691
Events in quadrant D5,560,617629,602

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142281
B0136301
C0134321
D0208251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64231492.319788%
B64241151.790162%
C64241211.883562%
D64245919.199875%

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 7683 6424 38 38 0.49% 0.59%
B 7684 6425 0 0 0.00% 0.00%
C 7684 6425 0 0 0.00% 0.00%
D 7684 6425 544 544 7.08% 8.47%

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 4 2 239110 1447.66 821 807 164.6
A 0 226 7404 40.08 821 807 164.6
A 3 137 5984 31.45 821 807 164.6
B 12 111 18164 111.73 820 802 155.4
B 0 229 16066 98.22 820 802 155.4
B 11 111 15618 95.34 820 802 155.4
C 14 238 120277 671.65 768 775 177.9
C 3 233 36949 203.31 768 775 177.9
C 0 79 5708 27.73 768 775 177.9
D 13 232 2249843 12251.0 756 736 183.6
D 10 70 191726 1040.33 756 736 183.6
D 5 222 119875 648.96 756 736 183.6

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