ASTROSAT CZTI

Data Quality Report

Orbit 10361

Creation date: 2024-06-27T15:58:18.673432
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/AS1C02_045T02_9000001492_10361cztM0_level2.evt modeM0/AS1C02_045T02_9000001492_10361cztM0_level2_quad_clean.evt
Size (bytes)383,402,88093,836,160
Size365.6 MB 89.5 MB
Events in quadrant A2,579,339593,424
Events in quadrant B2,721,606583,231
Events in quadrant C2,504,654603,239
Events in quadrant D3,401,341648,134

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02764015804
B03124619440
C02839216629
D03261318374

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052
B063
C063
D052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284157
B0284153
C0284154
D0273142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5789480.829159%
B5584741.325215%
C5805170.292851%
D6480570.879630%

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 7241 6773 1 1 0.01% 0.01%
B 7241 6611 0 0 0.00% 0.00%
C 7241 6771 0 0 0.00% 0.00%
D 7241 6750 10 10 0.14% 0.15%

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 15 174 33212 243.98 653 638 133.5
A 8 5 9153 63.78 653 638 133.5
A 13 251 8143 56.21 653 638 133.5
B 4 239 136511 1123.09 631 616 121.0
B 11 51 71489 585.72 631 616 121.0
B 3 208 18979 151.76 631 616 121.0
C 13 61 4738 27.53 640 644 148.7
C 14 67 3856 21.6 640 644 148.7
C 14 234 3529 19.4 640 644 148.7
D 8 195 380789 2270.58 703 683 167.4
D 1 20 116639 692.67 703 683 167.4
D 1 52 55250 325.96 703 683 167.4

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