ASTROSAT CZTI

Data Quality Report

Orbit 33514

Creation date: 2024-06-27T20:49:40.080493
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/AS1A11_060T01_9000004804_33514cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33514cztM0_level2_quad_clean.evt
Size (bytes)563,123,52071,124,480
Size537.0 MB 67.8 MB
Events in quadrant A2,756,650445,755
Events in quadrant B4,602,580430,496
Events in quadrant C4,396,404433,061
Events in quadrant D4,888,385421,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121383
B0175382
C0166862
D0187622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A604840.066138%
B60485779.540344%
C60483455.704365%
D60482914.811508%

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 9423 6050 0 0 0.00% 0.00%
B 9423 6050 433 433 4.60% 7.16%
C 9423 6050 286 286 3.04% 4.73%
D 9423 6050 250 250 2.65% 4.13%

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 13 254 9785 63.37 711 696 143.4
A 3 137 6957 43.65 711 696 143.4
A 10 83 6022 37.13 711 696 143.4
B 5 172 1253297 9532.45 684 667 131.4
B 5 255 435955 3312.52 684 667 131.4
B 4 251 197442 1497.45 684 667 131.4
C 14 254 760505 4865.29 676 684 156.2
C 15 214 274658 1754.31 676 684 156.2
C 0 10 261420 1669.55 676 684 156.2
D 8 195 701645 4238.31 682 662 165.4
D 2 120 582973 3520.79 682 662 165.4
D 2 250 569594 3439.9 682 662 165.4

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