ASTROSAT CZTI

Data Quality Report

Orbit 28569

Creation date: 2024-06-27T19:53:27.407139
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_110T01_9000004104_28569cztM0_level2.evt modeM0/AS1A10_110T01_9000004104_28569cztM0_level2_quad_clean.evt
Size (bytes)441,982,08071,256,960
Size421.5 MB 68.0 MB
Events in quadrant A2,900,568444,359
Events in quadrant B3,073,156448,430
Events in quadrant C2,970,177433,301
Events in quadrant D4,043,280421,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122010
B0126690
C0122900
D0156820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5865450.767263%
B5866891.517218%
C5866621.056938%
D58662554.347085%

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 6910 5865 0 0 0.00% 0.00%
B 6911 5866 32 32 0.46% 0.55%
C 6911 5866 0 0 0.00% 0.00%
D 6911 5866 265 265 3.83% 4.52%

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 8754 52.91 747 731 151.6
A 14 238 7824 46.78 747 731 151.6
A 3 137 7075 41.84 747 731 151.6
B 4 171 181181 1281.68 733 716 140.8
B 12 111 17428 118.69 733 716 140.8
B 11 111 16023 108.71 733 716 140.8
C 14 238 116291 689.23 717 720 167.7
C 7 247 54274 319.38 717 720 167.7
C 13 61 5000 25.52 717 720 167.7
D 8 195 713966 4108.35 720 702 173.6
D 1 52 549786 3162.68 720 702 173.6
D 2 250 39265 222.12 720 702 173.6

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