ASTROSAT CZTI

Data Quality Report

Orbit 32712

Creation date: 2024-06-27T20:41:07.407801
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_123T04_9000004726_32712cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32712cztM0_level2_quad_clean.evt
Size (bytes)498,651,84084,752,640
Size475.6 MB 80.8 MB
Events in quadrant A4,622,520537,053
Events in quadrant B2,817,295580,985
Events in quadrant C2,838,711563,389
Events in quadrant D4,471,599521,288

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171283
B0116512
C0116712
D0168622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518858411.256746%
B5188571.098689%
C5188791.522745%
D51882975.724749%

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 7101 5189 427 427 6.01% 8.23%
B 7101 5189 27 27 0.38% 0.52%
C 7101 5189 64 64 0.90% 1.23%
D 7101 5189 245 245 3.45% 4.72%

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 15 249 1988971 16447.44 607 596 120.9
A 15 237 214117 1766.2 607 596 120.9
A 14 238 17383 138.86 607 596 120.9
B 4 251 156581 1312.85 634 622 118.8
B 0 219 70541 588.57 634 622 118.8
B 0 183 25950 213.2 634 622 118.8
C 9 236 215675 1555.84 604 612 138.2
C 3 233 118780 854.87 604 612 138.2
C 0 10 57738 413.27 604 612 138.2
D 7 80 569424 4042.49 588 574 140.7
D 2 249 417702 2964.29 588 574 140.7
D 8 195 406111 2881.92 588 574 140.7

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